Initial import

15 files changed, 2765 insertions, 0 deletions

diff --git a/src/leap/mail/__init__.py b/src/leap/mail/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/src/leap/mail/__init__.py
diff --git a/src/leap/mail/imap/__init__.py b/src/leap/mail/imap/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/src/leap/mail/imap/__init__.py
diff --git a/src/leap/mail/imap/server.py b/src/leap/mail/imap/server.py
new file mode 100644
index 0000000..4e9c22c
--- /dev/null
+++ b/src/leap/mail/imap/server.py
@@ -0,0 +1,558 @@
+import copy
+
+from zope.interface import implements
+
+from twisted.mail import imap4
+from twisted.internet import defer
+
+#from twisted import cred
+
+import u1db
+
+
+# TODO delete this SimpleMailbox
+class SimpleMailbox:
+    """
+    A simple Mailbox for reference
+    We don't intend to use this, only for debugging purposes
+    until we stabilize unittests with SoledadMailbox
+    """
+    implements(imap4.IMailboxInfo, imap4.IMailbox, imap4.ICloseableMailbox)
+
+    flags = ('\\Flag1', 'Flag2', '\\AnotherSysFlag', 'LastFlag')
+    messages = []
+    mUID = 0
+    rw = 1
+    closed = False
+
+    def __init__(self):
+        self.listeners = []
+        self.addListener = self.listeners.append
+        self.removeListener = self.listeners.remove
+
+    def getFlags(self):
+        return self.flags
+
+    def getUIDValidity(self):
+        return 42
+
+    def getUIDNext(self):
+        return len(self.messages) + 1
+
+    def getMessageCount(self):
+        return 9
+
+    def getRecentCount(self):
+        return 3
+
+    def getUnseenCount(self):
+        return 4
+
+    def isWriteable(self):
+        return self.rw
+
+    def destroy(self):
+        pass
+
+    def getHierarchicalDelimiter(self):
+        return '/'
+
+    def requestStatus(self, names):
+        r = {}
+        if 'MESSAGES' in names:
+            r['MESSAGES'] = self.getMessageCount()
+        if 'RECENT' in names:
+            r['RECENT'] = self.getRecentCount()
+        if 'UIDNEXT' in names:
+            r['UIDNEXT'] = self.getMessageCount() + 1
+        if 'UIDVALIDITY' in names:
+            r['UIDVALIDITY'] = self.getUID()
+        if 'UNSEEN' in names:
+            r['UNSEEN'] = self.getUnseenCount()
+        return defer.succeed(r)
+
+    def addMessage(self, message, flags, date=None):
+        self.messages.append((message, flags, date, self.mUID))
+        self.mUID += 1
+        return defer.succeed(None)
+
+    def expunge(self):
+        delete = []
+        for i in self.messages:
+            if '\\Deleted' in i[1]:
+                delete.append(i)
+        for i in delete:
+            self.messages.remove(i)
+        return [i[3] for i in delete]
+
+    def close(self):
+        self.closed = True
+
+
+###################################
+# SoledadAccount Index
+###################################
+
+class MissingIndexError(Exception):
+    """raises when tried to access a non existent index document"""
+
+
+class BadIndexError(Exception):
+    """raises when index is malformed or has the wrong cardinality"""
+
+
+EMPTY_INDEXDOC = {"is_index": True, "mailboxes": [], "subscriptions": []}
+get_empty_indexdoc = lambda: copy.deepcopy(EMPTY_INDEXDOC)
+
+
+class SoledadAccountIndex(object):
+    """
+    Index for the Soledad Account
+    keeps track of mailboxes and subscriptions
+    """
+    _index = None
+
+    def __init__(self, soledad=None):
+        self._soledad = soledad
+        self._db = soledad._db
+        self._initialize_db()
+
+    def _initialize_db(self):
+        """initialize the database"""
+        db_indexes = dict(self._soledad._db.list_indexes())
+        name, expression = "isindex", ["bool(is_index)"]
+        if name not in db_indexes:
+            self._soledad._db.create_index(name, *expression)
+        try:
+            self._index = self._get_index_doc()
+        except MissingIndexError:
+            print "no index!!! creating..."
+            self._create_index_doc()
+
+    def _create_index_doc(self):
+        """creates an empty index document"""
+        indexdoc = get_empty_indexdoc()
+        self._index = self._soledad.create_doc(
+            indexdoc)
+
+    def _get_index_doc(self):
+        """gets index document"""
+        indexdoc = self._db.get_from_index("isindex", "*")
+        if not indexdoc:
+            raise MissingIndexError
+        if len(indexdoc) > 1:
+            raise BadIndexError
+        return indexdoc[0]
+
+    def _update_index_doc(self):
+        """updates index document"""
+        self._db.put_doc(self._index)
+
+    # setters and getters for the index document
+
+    def _get_mailboxes(self):
+        """Get mailboxes associated with this account."""
+        return self._index.content.setdefault('mailboxes', [])
+
+    def _set_mailboxes(self, mailboxes):
+        """Set mailboxes associated with this account."""
+        self._index.content['mailboxes'] = list(set(mailboxes))
+        self._update_index_doc()
+
+    mailboxes = property(
+        _get_mailboxes, _set_mailboxes, doc="Account mailboxes.")
+
+    def _get_subscriptions(self):
+        """Get subscriptions associated with this account."""
+        return self._index.content.setdefault('subscriptions', [])
+
+    def _set_subscriptions(self, subscriptions):
+        """Set subscriptions associated with this account."""
+        self._index.content['subscriptions'] = list(set(subscriptions))
+        self._update_index_doc()
+
+    subscriptions = property(
+        _get_subscriptions, _set_subscriptions, doc="Account subscriptions.")
+
+    def addMailbox(self, name):
+        """add a mailbox to the mailboxes list."""
+        name = name.upper()
+        self.mailboxes.append(name)
+        self._update_index_doc()
+
+    def removeMailbox(self, name):
+        """remove a mailbox from the mailboxes list."""
+        self.mailboxes.remove(name)
+        self._update_index_doc()
+
+    def addSubscription(self, name):
+        """add a subscription to the subscriptions list."""
+        name = name.upper()
+        self.subscriptions.append(name)
+        self._update_index_doc()
+
+    def removeSubscription(self, name):
+        """remove a subscription from the subscriptions list."""
+        self.subscriptions.remove(name)
+        self._update_index_doc()
+
+
+#######################################
+# Soledad Account
+#######################################
+
+class SoledadBackedAccount(object):
+
+    implements(imap4.IAccount, imap4.INamespacePresenter)
+
+    #mailboxes = None
+    #subscriptions = None
+
+    top_id = 0  # XXX move top_id to _index
+    _soledad = None
+    _db = None
+
+    def __init__(self, name, soledad=None):
+        self.name = name
+        self._soledad = soledad
+        self._db = soledad._db
+        self._index = SoledadAccountIndex(soledad=soledad)
+
+        #self.mailboxes = {}
+        #self.subscriptions = []
+
+    def allocateID(self):
+        id = self.top_id  # XXX move to index !!!
+        self.top_id += 1
+        return id
+
+    @property
+    def mailboxes(self):
+        return self._index.mailboxes
+
+    @property
+    def subscriptions(self):
+        return self._index.subscriptions
+
+    ##
+    ## IAccount
+    ##
+
+    def addMailbox(self, name, mbox=None):
+        name = name.upper()
+        if name in self.mailboxes:
+            raise imap4.MailboxCollision, name
+        if mbox is None:
+            mbox = self._emptyMailbox(name, self.allocateID())
+        self._index.addMailbox(name)
+        return 1
+
+    def create(self, pathspec):
+        paths = filter(None, pathspec.split('/'))
+        for accum in range(1, len(paths)):
+            try:
+                self.addMailbox('/'.join(paths[:accum]))
+            except imap4.MailboxCollision:
+                pass
+        try:
+            self.addMailbox('/'.join(paths))
+        except imap4.MailboxCollision:
+            if not pathspec.endswith('/'):
+                return False
+        return True
+
+    def _emptyMailbox(self, name, id):
+        # XXX implement!!!
+        raise NotImplementedError
+
+    def select(self, name, readwrite=1):
+        return self.mailboxes.get(name.upper())
+
+    def delete(self, name):
+        name = name.upper()
+        # See if this mailbox exists at all
+        mbox = self.mailboxes.get(name)
+        if not mbox:
+            raise imap4.MailboxException("No such mailbox")
+        # See if this box is flagged \Noselect
+        if r'\Noselect' in mbox.getFlags():
+            # Check for hierarchically inferior mailboxes with this one
+            # as part of their root.
+            for others in self.mailboxes.keys():
+                if others != name and others.startswith(name):
+                    raise imap4.MailboxException, (
+                        "Hierarchically inferior mailboxes "
+                        "exist and \\Noselect is set")
+        mbox.destroy()
+
+        # iff there are no hierarchically inferior names, we will
+        # delete it from our ken.
+        if self._inferiorNames(name) > 1:
+            del self.mailboxes[name]
+
+    def rename(self, oldname, newname):
+        oldname = oldname.upper()
+        newname = newname.upper()
+        if oldname not in self.mailboxes:
+            raise imap4.NoSuchMailbox, oldname
+
+        inferiors = self._inferiorNames(oldname)
+        inferiors = [(o, o.replace(oldname, newname, 1)) for o in inferiors]
+
+        for (old, new) in inferiors:
+            if new in self.mailboxes:
+                raise imap4.MailboxCollision, new
+
+        for (old, new) in inferiors:
+            self.mailboxes[new] = self.mailboxes[old]
+            del self.mailboxes[old]
+
+    def _inferiorNames(self, name):
+        inferiors = []
+        for infname in self.mailboxes.keys():
+            if infname.startswith(name):
+                inferiors.append(infname)
+        return inferiors
+
+    def isSubscribed(self, name):
+        return name.upper() in self.subscriptions
+
+    def subscribe(self, name):
+        name = name.upper()
+        if name not in self.subscriptions:
+            self._index.addSubscription(name)
+
+    def unsubscribe(self, name):
+        name = name.upper()
+        if name not in self.subscriptions:
+            raise imap4.MailboxException, "Not currently subscribed to " + name
+        self._index.removeSubscription(name)
+
+    def listMailboxes(self, ref, wildcard):
+        ref = self._inferiorNames(ref.upper())
+        wildcard = imap4.wildcardToRegexp(wildcard, '/')
+        return [(i, self.mailboxes[i]) for i in ref if wildcard.match(i)]
+
+    ##
+    ## INamespacePresenter
+    ##
+
+    def getPersonalNamespaces(self):
+        return [["", "/"]]
+
+    def getSharedNamespaces(self):
+        return None
+
+    def getOtherNamespaces(self):
+        return None
+
+#######################################
+# Soledad Message, MessageCollection
+# and Mailbox
+#######################################
+
+FLAGS_INDEX = 'flags'
+SEEN_INDEX = 'seen'
+INDEXES = {FLAGS_INDEX: ['flags'],
+           SEEN_INDEX: ['bool(seen)'],
+}
+
+
+class Message(u1db.Document):
+    """A rfc822 message item."""
+    # XXX TODO use email module
+
+    def _get_subject(self):
+        """Get the message title."""
+        return self.content.get('subject')
+
+    def _set_subject(self, subject):
+        """Set the message title."""
+        self.content['subject'] = subject
+
+    subject = property(_get_subject, _set_subject,
+                       doc="Subject of the message.")
+
+    def _get_seen(self):
+        """Get the seen status of the message."""
+        return self.content.get('seen', False)
+
+    def _set_seen(self, value):
+        """Set the seen status."""
+        self.content['seen'] = value
+
+    seen = property(_get_seen, _set_seen, doc="Seen flag.")
+
+    def _get_flags(self):
+        """Get flags associated with the message."""
+        return self.content.setdefault('flags', [])
+
+    def _set_flags(self, flags):
+        """Set flags associated with the message."""
+        self.content['flags'] = list(set(flags))
+
+    flags = property(_get_flags, _set_flags, doc="Message flags.")
+
+EMPTY_MSG = {
+    "subject": "",
+    "seen": False,
+    "flags": [],
+    "mailbox": "",
+}
+get_empty_msg = lambda: copy.deepcopy(EMPTY_MSG)
+
+
+class MessageCollection(object):
+    """
+    A collection of messages
+    """
+
+    def __init__(self, mbox=None, db=None):
+        assert mbox
+        self.db = db
+        self.initialize_db()
+
+    def initialize_db(self):
+        """Initialize the database."""
+        # Ask the database for currently existing indexes.
+        db_indexes = dict(self.db.list_indexes())
+        # Loop through the indexes we expect to find.
+        for name, expression in INDEXES.items():
+            print 'name is', name
+            if name not in db_indexes:
+                # The index does not yet exist.
+                print 'creating index'
+                self.db.create_index(name, *expression)
+                continue
+
+            if expression == db_indexes[name]:
+                print 'expression up to date'
+                # The index exists and is up to date.
+                continue
+            # The index exists but the definition is not what expected, so we
+            # delete it and add the proper index expression.
+            print 'deleting index'
+            self.db.delete_index(name)
+            self.db.create_index(name, *expression)
+
+    def add_msg(self, subject=None, flags=None):
+        """Create a new message document."""
+        if flags is None:
+            flags = []
+        content = get_empty_msg()
+        if subject or flags:
+            content['subject'] = subject
+            content['flags'] = flags
+        # Store the document in the database. Since we did not set a document
+        # id, the database will store it as a new document, and generate
+        # a valid id.
+        return self.db.create_doc(content)
+
+    def get_all(self):
+        """Get all messages"""
+        return self.db.get_from_index(SEEN_INDEX, "*")
+
+    def get_unseen(self):
+        """Get only unseen messages"""
+        return self.db.get_from_index(SEEN_INDEX, "0")
+
+    def count(self):
+        return len(self.get_all())
+
+
+class SoledadMailbox:
+    """
+    A Soledad-backed IMAP mailbox
+    """
+
+    implements(imap4.IMailboxInfo, imap4.IMailbox, imap4.ICloseableMailbox)
+
+    flags = ('\\Seen', '\\Answered', '\\Flagged',
+             '\\Deleted', '\\Draft', '\\Recent', 'List')
+
+    #messages = []
+    messages = None
+    mUID = 0
+    rw = 1
+    closed = False
+
+    def __init__(self, mbox, soledad=None):
+        # XXX sanity check:
+        #soledad is not None and isinstance(SQLCipherDatabase, soldad._db)
+        self.listeners = []
+        self.addListener = self.listeners.append
+        self.removeListener = self.listeners.remove
+        self._soledad = soledad
+        if soledad:
+            self.messages = MessageCollection(
+                mbox=mbox, db=soledad._db)
+
+    def getFlags(self):
+        return self.messages.db.get_index_keys(FLAGS_INDEX)
+
+    def getUIDValidity(self):
+        return 42
+
+    def getUIDNext(self):
+        return self.messages.count() + 1
+
+    def getMessageCount(self):
+        return self.messages.count()
+
+    def getUnseenCount(self):
+        return len(self.messages.get_unseen())
+
+    def getRecentCount(self):
+        # XXX
+        return 3
+
+    def isWriteable(self):
+        return self.rw
+
+    def destroy(self):
+        pass
+
+    def getHierarchicalDelimiter(self):
+        return '/'
+
+    def requestStatus(self, names):
+        r = {}
+        if 'MESSAGES' in names:
+            r['MESSAGES'] = self.getMessageCount()
+        if 'RECENT' in names:
+            r['RECENT'] = self.getRecentCount()
+        if 'UIDNEXT' in names:
+            r['UIDNEXT'] = self.getMessageCount() + 1
+        if 'UIDVALIDITY' in names:
+            r['UIDVALIDITY'] = self.getUID()
+        if 'UNSEEN' in names:
+            r['UNSEEN'] = self.getUnseenCount()
+        return defer.succeed(r)
+
+    def addMessage(self, message, flags, date=None):
+        # self.messages.add_msg((msg, flags, date, self.mUID))
+        #self.messages.append((message, flags, date, self.mUID))
+        # XXX CHANGE-ME
+        self.messages.add_msg(subject=message, flags=flags, date=date)
+        self.mUID += 1
+        return defer.succeed(None)
+
+    def deleteAllDocs(self):
+        """deletes all docs"""
+        docs = self.messages.db.get_all_docs()[1]
+        for doc in docs:
+            self.messages.db.delete_doc(doc)
+
+    def expunge(self):
+        """deletes all messages flagged \\Deleted"""
+        # XXX FIXME!
+        delete = []
+        for i in self.messages:
+            if '\\Deleted' in i[1]:
+                delete.append(i)
+        for i in delete:
+            self.messages.remove(i)
+        return [i[3] for i in delete]
+
+    def close(self):
+        self.closed = True
diff --git a/src/leap/mail/imap/tests/__init__.py b/src/leap/mail/imap/tests/__init__.py
new file mode 100644
index 0000000..9a4c663
--- /dev/null
+++ b/src/leap/mail/imap/tests/__init__.py
@@ -0,0 +1,232 @@
+#-*- encoding: utf-8 -*-
+"""
+leap/email/imap/tests/__init__.py
+----------------------------------
+Module intialization file for leap.mx.tests, a module containing unittesting
+code, using twisted.trial, for testing leap_mx.
+
+@authors: Kali Kaneko, <kali@leap.se>
+@license: GPLv3, see included LICENSE file
+@copyright: © 2013 Kali Kaneko, see COPYLEFT file
+"""
+
+__all__ = ['test_imap']
+
+
+def run():
+    """xxx fill me in"""
+    pass
+
+import u1db
+
+from leap.common.testing.basetest import BaseLeapTest
+
+from leap.soledad import Soledad
+from leap.soledad.util import GPGWrapper
+from leap.soledad.backends.leap_backend import LeapDocument
+
+
+#-----------------------------------------------------------------------------
+# Some tests inherit from BaseSoledadTest in order to have a working Soledad
+# instance in each test.
+#-----------------------------------------------------------------------------
+
+class BaseSoledadIMAPTest(BaseLeapTest):
+    """
+    Instantiates GPG and Soledad for usage in LeapIMAPServer tests.
+    Copied from BaseSoledadTest, but moving setup to classmethod
+    """
+
+    def setUp(self):
+        # config info
+        self.gnupg_home = "%s/gnupg" % self.tempdir
+        self.db1_file = "%s/db1.u1db" % self.tempdir
+        self.db2_file = "%s/db2.u1db" % self.tempdir
+        self.email = 'leap@leap.se'
+        # open test dbs
+        self._db1 = u1db.open(self.db1_file, create=True,
+                              document_factory=LeapDocument)
+        self._db2 = u1db.open(self.db2_file, create=True,
+                              document_factory=LeapDocument)
+        # initialize soledad by hand so we can control keys
+        self._soledad = Soledad(self.email, gnupg_home=self.gnupg_home,
+                                initialize=False,
+                                prefix=self.tempdir)
+        self._soledad._init_dirs()
+        self._soledad._gpg = GPGWrapper(gnupghome=self.gnupg_home)
+        self._soledad._gpg.import_keys(PUBLIC_KEY)
+        self._soledad._gpg.import_keys(PRIVATE_KEY)
+        self._soledad._load_openpgp_keypair()
+        if not self._soledad._has_secret():
+            self._soledad._gen_secret()
+        self._soledad._load_secret()
+        self._soledad._init_db()
+
+    def tearDown(self):
+        self._db1.close()
+        self._db2.close()
+        self._soledad.close()
+
+
+# Key material for testing
+KEY_FINGERPRINT = "E36E738D69173C13D709E44F2F455E2824D18DDF"
+PUBLIC_KEY = """
+-----BEGIN PGP PUBLIC KEY BLOCK-----
+Version: GnuPG v1.4.10 (GNU/Linux)
+
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+=MuOY
+-----END PGP PUBLIC KEY BLOCK-----
+"""
+PRIVATE_KEY = """
+-----BEGIN PGP PRIVATE KEY BLOCK-----
+Version: GnuPG v1.4.10 (GNU/Linux)
+
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+=JTFu
+-----END PGP PRIVATE KEY BLOCK-----
+"""
diff --git a/src/leap/mail/imap/tests/imapclient.py b/src/leap/mail/imap/tests/imapclient.py
new file mode 100755
index 0000000..027396c
--- /dev/null
+++ b/src/leap/mail/imap/tests/imapclient.py
@@ -0,0 +1,206 @@
+#!/usr/bin/env python
+
+# Copyright (c) Twisted Matrix Laboratories.
+# See LICENSE for details.
+
+
+"""
+Simple IMAP4 client which connects to our custome
+IMAP4 server: imapserver.py.
+"""
+
+import sys
+
+from twisted.internet import protocol
+from twisted.internet import defer
+from twisted.internet import stdio
+from twisted.mail import imap4
+from twisted.protocols import basic
+from twisted.python import util
+from twisted.python import log
+
+
+class TrivialPrompter(basic.LineReceiver):
+    #from os import linesep as delimiter
+
+    promptDeferred = None
+
+    def prompt(self, msg):
+        assert self.promptDeferred is None
+        self.display(msg)
+        self.promptDeferred = defer.Deferred()
+        return self.promptDeferred
+
+    def display(self, msg):
+        self.transport.write(msg)
+
+    def lineReceived(self, line):
+        if self.promptDeferred is None:
+            return
+        d, self.promptDeferred = self.promptDeferred, None
+        d.callback(line)
+
+
+class SimpleIMAP4Client(imap4.IMAP4Client):
+    """
+    Add callbacks when the client receives greeting messages from
+    an IMAP server.
+    """
+    greetDeferred = None
+
+    def serverGreeting(self, caps):
+        self.serverCapabilities = caps
+        if self.greetDeferred is not None:
+            d, self.greetDeferred = self.greetDeferred, None
+            d.callback(self)
+
+
+class SimpleIMAP4ClientFactory(protocol.ClientFactory):
+    usedUp = False
+    protocol = SimpleIMAP4Client
+
+    def __init__(self, username, onConn):
+        self.username = username
+        self.onConn = onConn
+
+    def buildProtocol(self, addr):
+        assert not self.usedUp
+        self.usedUp = True
+
+        p = self.protocol()
+        p.factory = self
+        p.greetDeferred = self.onConn
+
+        p.registerAuthenticator(imap4.PLAINAuthenticator(self.username))
+        p.registerAuthenticator(imap4.LOGINAuthenticator(self.username))
+        p.registerAuthenticator(
+            imap4.CramMD5ClientAuthenticator(self.username))
+
+        return p
+
+    def clientConnectionFailed(self, connector, reason):
+        d, self.onConn = self.onConn, None
+        d.errback(reason)
+
+
+def cbServerGreeting(proto, username, password):
+    """
+    Initial callback - invoked after the server sends us its greet message.
+    """
+    # Hook up stdio
+    tp = TrivialPrompter()
+    stdio.StandardIO(tp)
+
+    # And make it easily accessible
+    proto.prompt = tp.prompt
+    proto.display = tp.display
+
+    # Try to authenticate securely
+    return proto.authenticate(
+        password).addCallback(
+            cbAuthentication, proto).addErrback(
+                ebAuthentication, proto, username, password)
+
+
+def ebConnection(reason):
+    """
+    Fallback error-handler. If anything goes wrong, log it and quit.
+    """
+    log.startLogging(sys.stdout)
+    log.err(reason)
+    return reason
+
+
+def cbAuthentication(result, proto):
+    """
+    Callback after authentication has succeeded.
+    List a bunch of mailboxes.
+    """
+    return proto.list("", "*"
+                      ).addCallback(cbMailboxList, proto
+                                    )
+
+
+def ebAuthentication(failure, proto, username, password):
+    """
+    Errback invoked when authentication fails.
+    If it failed because no SASL mechanisms match, offer the user the choice
+    of logging in insecurely.
+    If you are trying to connect to your Gmail account, you will be here!
+    """
+    failure.trap(imap4.NoSupportedAuthentication)
+    return proto.prompt(
+        "No secure authentication available. Login insecurely? (y/N) "
+    ).addCallback(cbInsecureLogin, proto, username, password
+                  )
+
+
+def cbInsecureLogin(result, proto, username, password):
+    """
+    Callback for "insecure-login" prompt.
+    """
+    if result.lower() == "y":
+        # If they said yes, do it.
+        return proto.login(username, password
+                           ).addCallback(cbAuthentication, proto
+                                         )
+    return defer.fail(Exception("Login failed for security reasons."))
+
+
+def cbMailboxList(result, proto):
+    """
+    Callback invoked when a list of mailboxes has been retrieved.
+    """
+    result = [e[2] for e in result]
+    s = '\n'.join(
+        ['%d. %s' % (n + 1, m) for (n, m) in zip(range(len(result)), result)])
+    if not s:
+        return defer.fail(Exception("No mailboxes exist on server!"))
+    return proto.prompt(s + "\nWhich mailbox? [1] "
+                        ).addCallback(cbPickMailbox, proto, result
+                                      )
+
+
+def cbPickMailbox(result, proto, mboxes):
+    """
+    When the user selects a mailbox, "examine" it.
+    """
+    mbox = mboxes[int(result or '1') - 1]
+    return proto.status(mbox, 'MESSAGES', 'UNSEEN'
+                        ).addCallback(cbMboxStatus, proto)
+
+
+def cbMboxStatus(result, proto):
+    print "You have %s messages (%s unseen)!" % (
+        result['MESSAGES'], result['UNSEEN'])
+    return proto.logout()
+
+
+def cbClose(result):
+    """
+    Close the connection when we finish everything.
+    """
+    from twisted.internet import reactor
+    reactor.stop()
+
+
+def main():
+    hostname = raw_input('IMAP4 Server Hostname: ')
+    port = raw_input('IMAP4 Server Port (the default is 143): ')
+    username = raw_input('IMAP4 Username: ')
+    password = util.getPassword('IMAP4 Password: ')
+
+    onConn = defer.Deferred(
+    ).addCallback(cbServerGreeting, username, password
+                  ).addErrback(ebConnection
+                               ).addBoth(cbClose)
+
+    factory = SimpleIMAP4ClientFactory(username, onConn)
+
+    from twisted.internet import reactor
+    conn = reactor.connectTCP(hostname, int(port), factory)
+    reactor.run()
+
+
+if __name__ == '__main__':
+    main()
diff --git a/src/leap/mail/imap/tests/rfc822.message b/src/leap/mail/imap/tests/rfc822.message
new file mode 100644
index 0000000..ee97ab9
--- /dev/null
+++ b/src/leap/mail/imap/tests/rfc822.message
@@ -0,0 +1,86 @@
+Return-Path: <twisted-commits-admin@twistedmatrix.com>
+Delivered-To: exarkun@meson.dyndns.org
+Received: from localhost [127.0.0.1]
+	by localhost with POP3 (fetchmail-6.2.1)
+	for exarkun@localhost (single-drop); Thu, 20 Mar 2003 14:50:20 -0500 (EST)
+Received: from pyramid.twistedmatrix.com (adsl-64-123-27-105.dsl.austtx.swbell.net [64.123.27.105])
+	by intarweb.us (Postfix) with ESMTP id 4A4A513EA4
+	for <exarkun@meson.dyndns.org>; Thu, 20 Mar 2003 14:49:27 -0500 (EST)
+Received: from localhost ([127.0.0.1] helo=pyramid.twistedmatrix.com)
+	by pyramid.twistedmatrix.com with esmtp (Exim 3.35 #1 (Debian))
+	id 18w648-0007Vl-00; Thu, 20 Mar 2003 13:51:04 -0600
+Received: from acapnotic by pyramid.twistedmatrix.com with local (Exim 3.35 #1 (Debian))
+	id 18w63j-0007VK-00
+	for <twisted-commits@twistedmatrix.com>; Thu, 20 Mar 2003 13:50:39 -0600
+To: twisted-commits@twistedmatrix.com
+From: etrepum CVS <etrepum@twistedmatrix.com>
+Reply-To: twisted-python@twistedmatrix.com
+X-Mailer: CVSToys
+Message-Id: <E18w63j-0007VK-00@pyramid.twistedmatrix.com>
+Subject: [Twisted-commits] rebuild now works on python versions from 2.2.0 and up.
+Sender: twisted-commits-admin@twistedmatrix.com
+Errors-To: twisted-commits-admin@twistedmatrix.com
+X-BeenThere: twisted-commits@twistedmatrix.com
+X-Mailman-Version: 2.0.11
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+List-Help: <mailto:twisted-commits-request@twistedmatrix.com?subject=help>
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+List-Subscribe: <http://twistedmatrix.com/cgi-bin/mailman/listinfo/twisted-commits>,
+	<mailto:twisted-commits-request@twistedmatrix.com?subject=subscribe>
+List-Id: <twisted-commits.twistedmatrix.com>
+List-Unsubscribe: <http://twistedmatrix.com/cgi-bin/mailman/listinfo/twisted-commits>,
+	<mailto:twisted-commits-request@twistedmatrix.com?subject=unsubscribe>
+List-Archive: <http://twistedmatrix.com/pipermail/twisted-commits/>
+Date: Thu, 20 Mar 2003 13:50:39 -0600
+
+Modified files:
+Twisted/twisted/python/rebuild.py 1.19 1.20
+
+Log message:
+rebuild now works on python versions from 2.2.0 and up.
+
+
+ViewCVS links:
+http://twistedmatrix.com/users/jh.twistd/viewcvs/cgi/viewcvs.cgi/twisted/python/rebuild.py.diff?r1=text&tr1=1.19&r2=text&tr2=1.20&cvsroot=Twisted
+
+Index: Twisted/twisted/python/rebuild.py
+diff -u Twisted/twisted/python/rebuild.py:1.19 Twisted/twisted/python/rebuild.py:1.20
+--- Twisted/twisted/python/rebuild.py:1.19	Fri Jan 17 13:50:49 2003
++++ Twisted/twisted/python/rebuild.py	Thu Mar 20 11:50:08 2003
+@@ -206,15 +206,27 @@
+             clazz.__dict__.clear()
+             clazz.__getattr__ = __getattr__
+             clazz.__module__ = module.__name__
++    if newclasses:
++        import gc
++        if (2, 2, 0) <= sys.version_info[:3] < (2, 2, 2):
++            hasBrokenRebuild = 1
++            gc_objects = gc.get_objects()
++        else:
++            hasBrokenRebuild = 0
+     for nclass in newclasses:
+         ga = getattr(module, nclass.__name__)
+         if ga is nclass:
+             log.msg("WARNING: new-class %s not replaced by reload!" % reflect.qual(nclass))
+         else:
+-            import gc
+-            for r in gc.get_referrers(nclass):
+-                if isinstance(r, nclass):
++            if hasBrokenRebuild:
++                for r in gc_objects:
++                    if not getattr(r, '__class__', None) is nclass:
++                        continue
+                     r.__class__ = ga
++            else:
++                for r in gc.get_referrers(nclass):
++                    if getattr(r, '__class__', None) is nclass:
++                        r.__class__ = ga
+     if doLog:
+         log.msg('')
+         log.msg('  (fixing   %s): ' % str(module.__name__))
+
+
+_______________________________________________
+Twisted-commits mailing list
+Twisted-commits@twistedmatrix.com
+http://twistedmatrix.com/cgi-bin/mailman/listinfo/twisted-commits
diff --git a/src/leap/mail/imap/tests/test_imap.py b/src/leap/mail/imap/tests/test_imap.py
new file mode 100644
index 0000000..6792e4b
--- /dev/null
+++ b/src/leap/mail/imap/tests/test_imap.py
@@ -0,0 +1,957 @@
+#-*- encoding: utf-8 -*-
+"""
+leap/email/imap/tests/test_imap.py
+----------------------------------
+Test case for leap.email.imap.server
+
+@authors: Kali Kaneko, <kali@leap.se>
+@license: GPLv3, see included LICENSE file
+@copyright: © 2013 Kali Kaneko, see COPYLEFT file
+"""
+
+try:
+    from cStringIO import StringIO
+except ImportError:
+    from StringIO import StringIO
+
+import codecs
+import locale
+import os
+import types
+import tempfile
+import shutil
+
+
+from zope.interface import implements
+
+from twisted.mail.imap4 import MessageSet
+from twisted.mail import imap4
+from twisted.protocols import loopback
+from twisted.internet import defer
+from twisted.internet import error
+from twisted.internet import reactor
+from twisted.internet import interfaces
+from twisted.internet.task import Clock
+from twisted.trial import unittest
+from twisted.python import util, log
+from twisted.python import failure
+
+from twisted import cred
+import twisted.cred.error
+import twisted.cred.checkers
+import twisted.cred.credentials
+import twisted.cred.portal
+
+from twisted.test.proto_helpers import StringTransport, StringTransportWithDisconnection
+
+
+import u1db
+
+from leap.common.testing.basetest import BaseLeapTest
+from leap.mail.imap.server import SoledadMailbox
+from leap.mail.imap.tests import PUBLIC_KEY
+from leap.mail.imap.tests import PRIVATE_KEY
+
+from leap.soledad import Soledad
+from leap.soledad.util import GPGWrapper
+from leap.soledad.backends.leap_backend import LeapDocument
+
+
+def strip(f):
+    return lambda result, f=f: f()
+
+
+def sortNest(l):
+    l = l[:]
+    l.sort()
+    for i in range(len(l)):
+        if isinstance(l[i], types.ListType):
+            l[i] = sortNest(l[i])
+        elif isinstance(l[i], types.TupleType):
+            l[i] = tuple(sortNest(list(l[i])))
+    return l
+
+
+def initialize_soledad(email, gnupg_home, tempdir):
+    """
+    initializes soledad by hand
+    """
+    _soledad = Soledad(email, gnupg_home=gnupg_home,
+                            initialize=False,
+                            prefix=tempdir)
+    _soledad._init_dirs()
+    _soledad._gpg = GPGWrapper(gnupghome=gnupg_home)
+    _soledad._gpg.import_keys(PUBLIC_KEY)
+    _soledad._gpg.import_keys(PRIVATE_KEY)
+    _soledad._load_openpgp_keypair()
+    if not _soledad._has_secret():
+        _soledad._gen_secret()
+    _soledad._load_secret()
+    _soledad._init_db()
+    return _soledad
+
+
+##########################################
+# account, simpleserver
+##########################################
+
+
+class SoledadBackedAccount(imap4.MemoryAccount):
+    #mailboxFactory = SimpleMailbox
+    mailboxFactory = SoledadMailbox
+    soledadInstance = None
+
+    # XXX should reimplement IAccount -> SoledadAccount
+    # and receive the soledad instance on the constructor.
+    # SoledadMailbox should allow to filter by mailbox name
+    # _soledad db should include mailbox field
+    # and a document with "INDEX" info (mailboxes / subscriptions)
+
+    def _emptyMailbox(self, name, id):
+        return self.mailboxFactory(self.soledadInstance)
+
+    def select(self, name, rw=1):
+        # XXX rethink this.
+        # Need to be classmethods...
+        mbox = imap4.MemoryAccount.select(self, name)
+        if mbox is not None:
+            mbox.rw = rw
+        return mbox
+
+
+class SimpleLEAPServer(imap4.IMAP4Server):
+    def __init__(self, *args, **kw):
+        imap4.IMAP4Server.__init__(self, *args, **kw)
+        realm = TestRealm()
+        realm.theAccount = SoledadBackedAccount('testuser')
+        # XXX soledadInstance here?
+
+        portal = cred.portal.Portal(realm)
+        c = cred.checkers.InMemoryUsernamePasswordDatabaseDontUse()
+        self.checker = c
+        self.portal = portal
+        portal.registerChecker(c)
+        self.timeoutTest = False
+
+    def lineReceived(self, line):
+        if self.timeoutTest:
+            #Do not send a respones
+            return
+
+        imap4.IMAP4Server.lineReceived(self, line)
+
+    _username = 'testuser'
+    _password = 'password-test'
+
+    def authenticateLogin(self, username, password):
+        if username == self._username and password == self._password:
+            return imap4.IAccount, self.theAccount, lambda: None
+        raise cred.error.UnauthorizedLogin()
+
+
+class TestRealm:
+    theAccount = None
+
+    def requestAvatar(self, avatarId, mind, *interfaces):
+        return imap4.IAccount, self.theAccount, lambda: None
+
+######################
+# Test LEAP Server
+######################
+
+
+class SimpleClient(imap4.IMAP4Client):
+
+    def __init__(self, deferred, contextFactory=None):
+        imap4.IMAP4Client.__init__(self, contextFactory)
+        self.deferred = deferred
+        self.events = []
+
+    def serverGreeting(self, caps):
+        self.deferred.callback(None)
+
+    def modeChanged(self, writeable):
+        self.events.append(['modeChanged', writeable])
+        self.transport.loseConnection()
+
+    def flagsChanged(self, newFlags):
+        self.events.append(['flagsChanged', newFlags])
+        self.transport.loseConnection()
+
+    def newMessages(self, exists, recent):
+        self.events.append(['newMessages', exists, recent])
+        self.transport.loseConnection()
+
+
+class IMAP4HelperMixin(BaseLeapTest):
+
+    serverCTX = None
+    clientCTX = None
+
+    @classmethod
+    def setUpClass(cls):
+        cls.old_path = os.environ['PATH']
+        cls.old_home = os.environ['HOME']
+        cls.tempdir = tempfile.mkdtemp(prefix="leap_tests-")
+        cls.home = cls.tempdir
+        bin_tdir = os.path.join(
+            cls.tempdir,
+            'bin')
+        os.environ["PATH"] = bin_tdir
+        os.environ["HOME"] = cls.tempdir
+
+        # Soledad: config info
+        cls.gnupg_home = "%s/gnupg" % cls.tempdir
+        cls.email = 'leap@leap.se'
+        #cls.db1_file = "%s/db1.u1db" % cls.tempdir
+        #cls.db2_file = "%s/db2.u1db" % cls.tempdir
+        # open test dbs
+        #cls._db1 = u1db.open(cls.db1_file, create=True,
+                              #document_factory=LeapDocument)
+        #cls._db2 = u1db.open(cls.db2_file, create=True,
+                              #document_factory=LeapDocument)
+
+        # initialize soledad by hand so we can control keys
+        cls._soledad = initialize_soledad(
+            cls.email,
+            cls.gnupg_home,
+            cls.tempdir)
+
+        cls.sm = SoledadMailbox(soledad=cls._soledad)
+
+    @classmethod
+    def tearDownClass(cls):
+        #cls._db1.close()
+        #cls._db2.close()
+        cls._soledad.close()
+
+        os.environ["PATH"] = cls.old_path
+        os.environ["HOME"] = cls.old_home
+        # safety check
+        assert cls.tempdir.startswith('/tmp/leap_tests-')
+        shutil.rmtree(cls.tempdir)
+
+    def setUp(self):
+        d = defer.Deferred()
+        self.server = SimpleLEAPServer(contextFactory=self.serverCTX)
+        self.client = SimpleClient(d, contextFactory=self.clientCTX)
+        self.connected = d
+
+        theAccount = SoledadBackedAccount('testuser')
+        theAccount.soledadInstance = self._soledad
+
+        # XXX used for something???
+        #theAccount.mboxType = SoledadMailbox
+        SimpleLEAPServer.theAccount = theAccount
+
+    def tearDown(self):
+        self.delete_all_docs()
+        del self.server
+        del self.client
+        del self.connected
+
+    def populateMessages(self):
+        self._soledad.messages.add_msg(subject="test1")
+        self._soledad.messages.add_msg(subject="test2")
+        self._soledad.messages.add_msg(subject="test3")
+        # XXX should change Flags too
+        self._soledad.messages.add_msg(subject="test4")
+
+    def delete_all_docs(self):
+        self.server.theAccount.messages.deleteAllDocs()
+
+    def _cbStopClient(self, ignore):
+        self.client.transport.loseConnection()
+
+    def _ebGeneral(self, failure):
+        self.client.transport.loseConnection()
+        self.server.transport.loseConnection()
+        log.err(failure, "Problem with %r" % (self.function,))
+
+    def loopback(self):
+        return loopback.loopbackAsync(self.server, self.client)
+
+
+class IMAP4ServerTestCase(IMAP4HelperMixin, unittest.TestCase):
+
+    def testCapability(self):
+        caps = {}
+
+        def getCaps():
+            def gotCaps(c):
+                caps.update(c)
+                self.server.transport.loseConnection()
+            return self.client.getCapabilities().addCallback(gotCaps)
+        d1 = self.connected.addCallback(
+            strip(getCaps)).addErrback(self._ebGeneral)
+        d = defer.gatherResults([self.loopback(), d1])
+        expected = {'IMAP4rev1': None, 'NAMESPACE': None, 'IDLE': None}
+
+        return d.addCallback(lambda _: self.assertEqual(expected, caps))
+
+    def testCapabilityWithAuth(self):
+        caps = {}
+        self.server.challengers[
+            'CRAM-MD5'] = cred.credentials.CramMD5Credentials
+
+        def getCaps():
+            def gotCaps(c):
+                caps.update(c)
+                self.server.transport.loseConnection()
+            return self.client.getCapabilities().addCallback(gotCaps)
+        d1 = self.connected.addCallback(
+           strip(getCaps)).addErrback(self._ebGeneral)
+        d = defer.gatherResults([self.loopback(), d1])
+
+        expCap = {'IMAP4rev1': None, 'NAMESPACE': None,
+                  'IDLE': None, 'AUTH': ['CRAM-MD5']}
+
+        return d.addCallback(lambda _: self.assertEqual(expCap, caps))
+
+    def testLogout(self):
+        self.loggedOut = 0
+
+        def logout():
+            def setLoggedOut():
+                self.loggedOut = 1
+            self.client.logout().addCallback(strip(setLoggedOut))
+        self.connected.addCallback(strip(logout)).addErrback(self._ebGeneral)
+        d = self.loopback()
+        return d.addCallback(lambda _: self.assertEqual(self.loggedOut, 1))
+
+    def testNoop(self):
+        self.responses = None
+
+        def noop():
+            def setResponses(responses):
+                self.responses = responses
+                self.server.transport.loseConnection()
+            self.client.noop().addCallback(setResponses)
+        self.connected.addCallback(strip(noop)).addErrback(self._ebGeneral)
+        d = self.loopback()
+        return d.addCallback(lambda _: self.assertEqual(self.responses, []))
+
+    def testLogin(self):
+        def login():
+            d = self.client.login('testuser', 'password-test')
+            d.addCallback(self._cbStopClient)
+        d1 = self.connected.addCallback(strip(login)).addErrback(self._ebGeneral)
+        d = defer.gatherResults([d1, self.loopback()])
+        return d.addCallback(self._cbTestLogin)
+
+    def _cbTestLogin(self, ignored):
+        self.assertEqual(self.server.account, SimpleLEAPServer.theAccount)
+        self.assertEqual(self.server.state, 'auth')
+
+    def testFailedLogin(self):
+        def login():
+            d = self.client.login('testuser', 'wrong-password')
+            d.addBoth(self._cbStopClient)
+
+        d1 = self.connected.addCallback(strip(login)).addErrback(self._ebGeneral)
+        d2 = self.loopback()
+        d = defer.gatherResults([d1, d2])
+        return d.addCallback(self._cbTestFailedLogin)
+
+    def _cbTestFailedLogin(self, ignored):
+        self.assertEqual(self.server.account, None)
+        self.assertEqual(self.server.state, 'unauth')
+
+
+    def testLoginRequiringQuoting(self):
+        self.server._username = '{test}user'
+        self.server._password = '{test}password'
+
+        def login():
+            d = self.client.login('{test}user', '{test}password')
+            d.addBoth(self._cbStopClient)
+
+        d1 = self.connected.addCallback(strip(login)).addErrback(self._ebGeneral)
+        d = defer.gatherResults([self.loopback(), d1])
+        return d.addCallback(self._cbTestLoginRequiringQuoting)
+
+    def _cbTestLoginRequiringQuoting(self, ignored):
+        self.assertEqual(self.server.account, SimpleLEAPServer.theAccount)
+        self.assertEqual(self.server.state, 'auth')
+
+
+    def testNamespace(self):
+        self.namespaceArgs = None
+        def login():
+            return self.client.login('testuser', 'password-test')
+        def namespace():
+            def gotNamespace(args):
+                self.namespaceArgs = args
+                self._cbStopClient(None)
+            return self.client.namespace().addCallback(gotNamespace)
+
+        d1 = self.connected.addCallback(strip(login))
+        d1.addCallback(strip(namespace))
+        d1.addErrback(self._ebGeneral)
+        d2 = self.loopback()
+        d = defer.gatherResults([d1, d2])
+        d.addCallback(lambda _: self.assertEqual(self.namespaceArgs,
+                                                  [[['', '/']], [], []]))
+        return d
+
+    def testSelect(self):
+        SimpleLEAPServer.theAccount.addMailbox('test-mailbox')
+        self.selectedArgs = None
+
+        def login():
+            return self.client.login('testuser', 'password-test')
+
+        def select():
+            def selected(args):
+                self.selectedArgs = args
+                self._cbStopClient(None)
+            d = self.client.select('test-mailbox')
+            d.addCallback(selected)
+            return d
+
+        d1 = self.connected.addCallback(strip(login))
+        d1.addCallback(strip(select))
+        d1.addErrback(self._ebGeneral)
+        d2 = self.loopback()
+        return defer.gatherResults([d1, d2]).addCallback(self._cbTestSelect)
+
+    def _cbTestSelect(self, ignored):
+        mbox = SimpleLEAPServer.theAccount.mailboxes['TEST-MAILBOX']
+        self.assertEqual(self.server.mbox, mbox)
+        self.assertEqual(self.selectedArgs, {
+            'EXISTS': 9, 'RECENT': 3, 'UIDVALIDITY': 42,
+            'FLAGS': ('\\Seen', '\\Answered', '\\Flagged',
+                      '\\Deleted', '\\Draft', '\\Recent', 'List'),
+            'READ-WRITE': 1
+        })
+
+    def test_examine(self):
+        """
+        L{IMAP4Client.examine} issues an I{EXAMINE} command to the server and
+        returns a L{Deferred} which fires with a C{dict} with as many of the
+        following keys as the server includes in its response: C{'FLAGS'},
+        C{'EXISTS'}, C{'RECENT'}, C{'UNSEEN'}, C{'READ-WRITE'}, C{'READ-ONLY'},
+        C{'UIDVALIDITY'}, and C{'PERMANENTFLAGS'}.
+
+        Unfortunately the server doesn't generate all of these so it's hard to
+        test the client's handling of them here.  See
+        L{IMAP4ClientExamineTests} below.
+
+        See U{RFC 3501<http://www.faqs.org/rfcs/rfc3501.html>}, section 6.3.2,
+        for details.
+        """
+        SimpleLEAPServer.theAccount.addMailbox('test-mailbox')
+        self.examinedArgs = None
+
+        def login():
+            return self.client.login('testuser', 'password-test')
+
+        def examine():
+            def examined(args):
+                self.examinedArgs = args
+                self._cbStopClient(None)
+            d = self.client.examine('test-mailbox')
+            d.addCallback(examined)
+            return d
+
+        d1 = self.connected.addCallback(strip(login))
+        d1.addCallback(strip(examine))
+        d1.addErrback(self._ebGeneral)
+        d2 = self.loopback()
+        d = defer.gatherResults([d1, d2])
+        return d.addCallback(self._cbTestExamine)
+
+    def _cbTestExamine(self, ignored):
+        mbox = SimpleLEAPServer.theAccount.mailboxes['TEST-MAILBOX']
+        self.assertEqual(self.server.mbox, mbox)
+        self.assertEqual(self.examinedArgs, {
+            'EXISTS': 9, 'RECENT': 3, 'UIDVALIDITY': 42,
+            'FLAGS': ('\\Seen', '\\Answered', '\\Flagged',
+                      '\\Deleted', '\\Draft', '\\Recent', 'List'),
+            'READ-WRITE': False})
+
+    def testCreate(self):
+        succeed = ('testbox', 'test/box', 'test/', 'test/box/box', 'INBOX')
+        fail = ('testbox', 'test/box')
+
+        def cb():
+            self.result.append(1)
+
+        def eb(failure):
+            self.result.append(0)
+
+        def login():
+            return self.client.login('testuser', 'password-test')
+
+        def create():
+            for name in succeed + fail:
+                d = self.client.create(name)
+                d.addCallback(strip(cb)).addErrback(eb)
+            d.addCallbacks(self._cbStopClient, self._ebGeneral)
+
+        self.result = []
+        d1 = self.connected.addCallback(strip(login)).addCallback(
+            strip(create))
+        d2 = self.loopback()
+        d = defer.gatherResults([d1, d2])
+        return d.addCallback(self._cbTestCreate, succeed, fail)
+
+    def _cbTestCreate(self, ignored, succeed, fail):
+        self.assertEqual(self.result, [1] * len(succeed) + [0] * len(fail))
+        mbox = SimpleLEAPServer.theAccount.mailboxes.keys()
+        answers = ['inbox', 'testbox', 'test/box', 'test', 'test/box/box']
+        mbox.sort()
+        answers.sort()
+        self.assertEqual(mbox, [a.upper() for a in answers])
+
+    def testDelete(self):
+        SimpleLEAPServer.theAccount.addMailbox('delete/me')
+
+        def login():
+            return self.client.login('testuser', 'password-test')
+
+        def delete():
+            return self.client.delete('delete/me')
+
+        d1 = self.connected.addCallback(strip(login))
+        d1.addCallbacks(strip(delete), self._ebGeneral)
+        d1.addCallbacks(self._cbStopClient, self._ebGeneral)
+        d2 = self.loopback()
+        d = defer.gatherResults([d1, d2])
+        d.addCallback(lambda _:
+                      self.assertEqual(SimpleLEAPServer.theAccount.mailboxes.keys(), []))
+        return d
+
+    def testIllegalInboxDelete(self):
+        self.stashed = None
+
+        def login():
+            return self.client.login('testuser', 'password-test')
+
+        def delete():
+            return self.client.delete('inbox')
+
+        def stash(result):
+            self.stashed = result
+
+        d1 = self.connected.addCallback(strip(login))
+        d1.addCallbacks(strip(delete), self._ebGeneral)
+        d1.addBoth(stash)
+        d1.addCallbacks(self._cbStopClient, self._ebGeneral)
+        d2 = self.loopback()
+        d = defer.gatherResults([d1, d2])
+        d.addCallback(lambda _: self.failUnless(isinstance(self.stashed,
+                                                           failure.Failure)))
+        return d
+
+    def testNonExistentDelete(self):
+
+        def login():
+            return self.client.login('testuser', 'password-test')
+
+        def delete():
+            return self.client.delete('delete/me')
+
+        def deleteFailed(failure):
+            self.failure = failure
+
+        self.failure = None
+        d1 = self.connected.addCallback(strip(login))
+        d1.addCallback(strip(delete)).addErrback(deleteFailed)
+        d1.addCallbacks(self._cbStopClient, self._ebGeneral)
+        d2 = self.loopback()
+        d = defer.gatherResults([d1, d2])
+        d.addCallback(lambda _: self.assertEqual(str(self.failure.value),
+                                                  'No such mailbox'))
+        return d
+
+    def testIllegalDelete(self):
+        m = SoledadMailbox()
+        m.flags = (r'\Noselect',)
+        SimpleLEAPServer.theAccount.addMailbox('delete', m)
+        SimpleLEAPServer.theAccount.addMailbox('delete/me')
+
+        def login():
+            return self.client.login('testuser', 'password-test')
+
+        def delete():
+            return self.client.delete('delete')
+
+        def deleteFailed(failure):
+            self.failure = failure
+
+        self.failure = None
+        d1 = self.connected.addCallback(strip(login))
+        d1.addCallback(strip(delete)).addErrback(deleteFailed)
+        d1.addCallbacks(self._cbStopClient, self._ebGeneral)
+        d2 = self.loopback()
+        d = defer.gatherResults([d1, d2])
+        expected = ("Hierarchically inferior mailboxes exist "
+                    "and \\Noselect is set")
+        d.addCallback(lambda _:
+                      self.assertEqual(str(self.failure.value), expected))
+        return d
+
+    def testRename(self):
+        SimpleLEAPServer.theAccount.addMailbox('oldmbox')
+
+        def login():
+            return self.client.login('testuser', 'password-test')
+
+        def rename():
+            return self.client.rename('oldmbox', 'newname')
+
+        d1 = self.connected.addCallback(strip(login))
+        d1.addCallbacks(strip(rename), self._ebGeneral)
+        d1.addCallbacks(self._cbStopClient, self._ebGeneral)
+        d2 = self.loopback()
+        d = defer.gatherResults([d1, d2])
+        d.addCallback(lambda _:
+                      self.assertEqual(
+                        SimpleLEAPServer.theAccount.mailboxes.keys(),
+                        ['NEWNAME']))
+        return d
+
+    def testIllegalInboxRename(self):
+        self.stashed = None
+
+        def login():
+            return self.client.login('testuser', 'password-test')
+
+        def rename():
+            return self.client.rename('inbox', 'frotz')
+
+        def stash(stuff):
+            self.stashed = stuff
+
+        d1 = self.connected.addCallback(strip(login))
+        d1.addCallbacks(strip(rename), self._ebGeneral)
+        d1.addBoth(stash)
+        d1.addCallbacks(self._cbStopClient, self._ebGeneral)
+        d2 = self.loopback()
+        d = defer.gatherResults([d1, d2])
+        d.addCallback(lambda _:
+                      self.failUnless(isinstance(
+                        self.stashed, failure.Failure)))
+        return d
+
+    def testHierarchicalRename(self):
+        SimpleLEAPServer.theAccount.create('oldmbox/m1')
+        SimpleLEAPServer.theAccount.create('oldmbox/m2')
+
+        def login():
+            return self.client.login('testuser', 'password-test')
+
+        def rename():
+            return self.client.rename('oldmbox', 'newname')
+
+        d1 = self.connected.addCallback(strip(login))
+        d1.addCallbacks(strip(rename), self._ebGeneral)
+        d1.addCallbacks(self._cbStopClient, self._ebGeneral)
+        d2 = self.loopback()
+        d = defer.gatherResults([d1, d2])
+        return d.addCallback(self._cbTestHierarchicalRename)
+
+    def _cbTestHierarchicalRename(self, ignored):
+        mboxes = SimpleLEAPServer.theAccount.mailboxes.keys()
+        expected = ['newname', 'newname/m1', 'newname/m2']
+        mboxes.sort()
+        self.assertEqual(mboxes, [s.upper() for s in expected])
+
+    def testSubscribe(self):
+
+        def login():
+            return self.client.login('testuser', 'password-test')
+
+        def subscribe():
+            return self.client.subscribe('this/mbox')
+
+        d1 = self.connected.addCallback(strip(login))
+        d1.addCallbacks(strip(subscribe), self._ebGeneral)
+        d1.addCallbacks(self._cbStopClient, self._ebGeneral)
+        d2 = self.loopback()
+        d = defer.gatherResults([d1, d2])
+        d.addCallback(lambda _:
+                      self.assertEqual(SimpleLEAPServer.theAccount.subscriptions,
+                                        ['THIS/MBOX']))
+        return d
+
+    def testUnsubscribe(self):
+        SimpleLEAPServer.theAccount.subscriptions = ['THIS/MBOX', 'THAT/MBOX']
+        def login():
+            return self.client.login('testuser', 'password-test')
+        def unsubscribe():
+            return self.client.unsubscribe('this/mbox')
+
+        d1 = self.connected.addCallback(strip(login))
+        d1.addCallbacks(strip(unsubscribe), self._ebGeneral)
+        d1.addCallbacks(self._cbStopClient, self._ebGeneral)
+        d2 = self.loopback()
+        d = defer.gatherResults([d1, d2])
+        d.addCallback(lambda _:
+                      self.assertEqual(SimpleLEAPServer.theAccount.subscriptions,
+                                        ['THAT/MBOX']))
+        return d
+
+    def _listSetup(self, f):
+        SimpleLEAPServer.theAccount.addMailbox('root/subthing')
+        SimpleLEAPServer.theAccount.addMailbox('root/another-thing')
+        SimpleLEAPServer.theAccount.addMailbox('non-root/subthing')
+
+        def login():
+            return self.client.login('testuser', 'password-test')
+
+        def listed(answers):
+            self.listed = answers
+
+        self.listed = None
+        d1 = self.connected.addCallback(strip(login))
+        d1.addCallbacks(strip(f), self._ebGeneral)
+        d1.addCallbacks(listed, self._ebGeneral)
+        d1.addCallbacks(self._cbStopClient, self._ebGeneral)
+        d2 = self.loopback()
+        return defer.gatherResults([d1, d2]).addCallback(lambda _: self.listed)
+
+    def testList(self):
+        def list():
+            return self.client.list('root', '%')
+        d = self._listSetup(list)
+        d.addCallback(lambda listed: self.assertEqual(
+            sortNest(listed),
+            sortNest([
+                (SoledadMailbox.flags, "/", "ROOT/SUBTHING"),
+                (SoledadMailbox.flags, "/", "ROOT/ANOTHER-THING")
+            ])
+        ))
+        return d
+
+    def testLSub(self):
+        SimpleLEAPServer.theAccount.subscribe('ROOT/SUBTHING')
+
+        def lsub():
+            return self.client.lsub('root', '%')
+        d = self._listSetup(lsub)
+        d.addCallback(self.assertEqual,
+                      [(SoledadMailbox.flags, "/", "ROOT/SUBTHING")])
+        return d
+
+    def testStatus(self):
+        SimpleLEAPServer.theAccount.addMailbox('root/subthing')
+
+        def login():
+            return self.client.login('testuser', 'password-test')
+
+        def status():
+            return self.client.status(
+                'root/subthing', 'MESSAGES', 'UIDNEXT', 'UNSEEN')
+
+        def statused(result):
+            self.statused = result
+
+        self.statused = None
+        d1 = self.connected.addCallback(strip(login))
+        d1.addCallbacks(strip(status), self._ebGeneral)
+        d1.addCallbacks(statused, self._ebGeneral)
+        d1.addCallbacks(self._cbStopClient, self._ebGeneral)
+        d2 = self.loopback()
+        d = defer.gatherResults([d1, d2])
+        d.addCallback(lambda _: self.assertEqual(
+            self.statused,
+            {'MESSAGES': 9, 'UIDNEXT': '10', 'UNSEEN': 4}
+        ))
+        return d
+
+    def testFailedStatus(self):
+        def login():
+            return self.client.login('testuser', 'password-test')
+
+        def status():
+            return self.client.status(
+                'root/nonexistent', 'MESSAGES', 'UIDNEXT', 'UNSEEN')
+
+        def statused(result):
+            self.statused = result
+
+        def failed(failure):
+            self.failure = failure
+
+        self.statused = self.failure = None
+        d1 = self.connected.addCallback(strip(login))
+        d1.addCallbacks(strip(status), self._ebGeneral)
+        d1.addCallbacks(statused, failed)
+        d1.addCallbacks(self._cbStopClient, self._ebGeneral)
+        d2 = self.loopback()
+        return defer.gatherResults([d1, d2]).addCallback(
+            self._cbTestFailedStatus)
+
+    def _cbTestFailedStatus(self, ignored):
+        self.assertEqual(
+            self.statused, None
+        )
+        self.assertEqual(
+            self.failure.value.args,
+            ('Could not open mailbox',)
+        )
+
+    def testFullAppend(self):
+        infile = util.sibpath(__file__, 'rfc822.message')
+        message = open(infile)
+        SimpleLEAPServer.theAccount.addMailbox('root/subthing')
+
+        def login():
+            return self.client.login('testuser', 'password-test')
+
+        def append():
+            return self.client.append(
+                'root/subthing',
+                message,
+                ('\\SEEN', '\\DELETED'),
+                'Tue, 17 Jun 2003 11:22:16 -0600 (MDT)',
+            )
+
+        d1 = self.connected.addCallback(strip(login))
+        d1.addCallbacks(strip(append), self._ebGeneral)
+        d1.addCallbacks(self._cbStopClient, self._ebGeneral)
+        d2 = self.loopback()
+        d = defer.gatherResults([d1, d2])
+        return d.addCallback(self._cbTestFullAppend, infile)
+
+    def _cbTestFullAppend(self, ignored, infile):
+        mb = SimpleLEAPServer.theAccount.mailboxes['ROOT/SUBTHING']
+        self.assertEqual(1, len(mb.messages))
+        self.assertEqual(
+            (['\\SEEN', '\\DELETED'], 'Tue, 17 Jun 2003 11:22:16 -0600 (MDT)', 0),
+            mb.messages[0][1:]
+        )
+        self.assertEqual(open(infile).read(), mb.messages[0][0].getvalue())
+
+    def testPartialAppend(self):
+        infile = util.sibpath(__file__, 'rfc822.message')
+        message = open(infile)
+        SimpleLEAPServer.theAccount.addMailbox('PARTIAL/SUBTHING')
+
+        def login():
+            return self.client.login('testuser', 'password-test')
+
+        def append():
+            message = file(infile)
+            return self.client.sendCommand(
+                imap4.Command(
+                    'APPEND',
+                    'PARTIAL/SUBTHING (\\SEEN) "Right now" {%d}' % os.path.getsize(infile),
+                    (), self.client._IMAP4Client__cbContinueAppend, message
+                )
+            )
+        d1 = self.connected.addCallback(strip(login))
+        d1.addCallbacks(strip(append), self._ebGeneral)
+        d1.addCallbacks(self._cbStopClient, self._ebGeneral)
+        d2 = self.loopback()
+        d = defer.gatherResults([d1, d2])
+        return d.addCallback(self._cbTestPartialAppend, infile)
+
+    def _cbTestPartialAppend(self, ignored, infile):
+        mb = SimpleLEAPServer.theAccount.mailboxes['PARTIAL/SUBTHING']
+        self.assertEqual(1, len(mb.messages))
+        self.assertEqual(
+            (['\\SEEN'], 'Right now', 0),
+            mb.messages[0][1:]
+        )
+        self.assertEqual(open(infile).read(), mb.messages[0][0].getvalue())
+
+    def testCheck(self):
+        SimpleLEAPServer.theAccount.addMailbox('root/subthing')
+
+        def login():
+            return self.client.login('testuser', 'password-test')
+
+        def select():
+            return self.client.select('root/subthing')
+
+        def check():
+            return self.client.check()
+
+        d = self.connected.addCallback(strip(login))
+        d.addCallbacks(strip(select), self._ebGeneral)
+        d.addCallbacks(strip(check), self._ebGeneral)
+        d.addCallbacks(self._cbStopClient, self._ebGeneral)
+        return self.loopback()
+
+        # Okay, that was fun
+
+    def testClose(self):
+        m = SoledadMailbox()
+        m.messages = [
+            ('Message 1', ('\\Deleted', 'AnotherFlag'), None, 0),
+            ('Message 2', ('AnotherFlag',), None, 1),
+            ('Message 3', ('\\Deleted',), None, 2),
+        ]
+        SimpleLEAPServer.theAccount.addMailbox('mailbox', m)
+
+        def login():
+            return self.client.login('testuser', 'password-test')
+
+        def select():
+            return self.client.select('mailbox')
+
+        def close():
+            return self.client.close()
+
+        d = self.connected.addCallback(strip(login))
+        d.addCallbacks(strip(select), self._ebGeneral)
+        d.addCallbacks(strip(close), self._ebGeneral)
+        d.addCallbacks(self._cbStopClient, self._ebGeneral)
+        d2 = self.loopback()
+        return defer.gatherResults([d, d2]).addCallback(self._cbTestClose, m)
+
+    def _cbTestClose(self, ignored, m):
+        self.assertEqual(len(m.messages), 1)
+        self.assertEqual(m.messages[0],
+            ('Message 2', ('AnotherFlag',), None, 1))
+        self.failUnless(m.closed)
+
+    def testExpunge(self):
+        m = SoledadMailbox()
+        m.messages = [
+            ('Message 1', ('\\Deleted', 'AnotherFlag'), None, 0),
+            ('Message 2', ('AnotherFlag',), None, 1),
+            ('Message 3', ('\\Deleted',), None, 2),
+        ]
+        SimpleLEAPServer.theAccount.addMailbox('mailbox', m)
+
+        def login():
+            return self.client.login('testuser', 'password-test')
+
+        def select():
+            return self.client.select('mailbox')
+
+        def expunge():
+            return self.client.expunge()
+
+        def expunged(results):
+            self.failIf(self.server.mbox is None)
+            self.results = results
+
+        self.results = None
+        d1 = self.connected.addCallback(strip(login))
+        d1.addCallbacks(strip(select), self._ebGeneral)
+        d1.addCallbacks(strip(expunge), self._ebGeneral)
+        d1.addCallbacks(expunged, self._ebGeneral)
+        d1.addCallbacks(self._cbStopClient, self._ebGeneral)
+        d2 = self.loopback()
+        d = defer.gatherResults([d1, d2])
+        return d.addCallback(self._cbTestExpunge, m)
+
+    def _cbTestExpunge(self, ignored, m):
+        self.assertEqual(len(m.messages), 1)
+        self.assertEqual(m.messages[0],
+            ('Message 2', ('AnotherFlag',), None, 1))
+
+        self.assertEqual(self.results, [0, 2])
+
+
+
+class IMAP4ServerSearchTestCase(IMAP4HelperMixin, unittest.TestCase):
+    """
+    Tests for the behavior of the search_* functions in L{imap4.IMAP4Server}.
+    """
+    pass
diff --git a/src/leap/mail/smtp/README.rst b/src/leap/mail/smtp/README.rst
new file mode 100644
index 0000000..2b2a118
--- /dev/null
+++ b/src/leap/mail/smtp/README.rst
@@ -0,0 +1,43 @@
+Leap SMTP Relay
+===============
+
+Outgoing mail workflow:
+
+    * LEAP client runs a thin SMTP proxy on the user's device, bound to
+      localhost.
+    * User's MUA is configured outgoing SMTP to localhost
+    * When SMTP proxy receives an email from MUA
+        * SMTP proxy queries Key Manager for the user's private key and public
+          keys of all recipients
+        * Message is signed by sender and encrypted to recipients.
+        * If recipient's key is missing, email goes out in cleartext (unless
+          user has configured option to send only encrypted email)
+        * Finally, message is relayed to provider's SMTP relay
+
+
+Dependencies
+------------
+
+Leap SMTP Relay depends on the following python libraries:
+
+  * Twisted 12.3.0 [1]
+  * zope.interface 4.0.3 [2]
+
+[1] http://pypi.python.org/pypi/Twisted/12.3.0
+[2] http://pypi.python.org/pypi/zope.interface/4.0.3
+
+
+How to run
+----------
+
+To launch the SMTP relay, run the following command:
+
+  twistd -y smtprelay.tac
+
+
+Running tests
+-------------
+
+Tests are run using Twisted's Trial API, like this:
+
+  trial leap.email.smtp.tests
diff --git a/src/leap/mail/smtp/__init__.py b/src/leap/mail/smtp/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/src/leap/mail/smtp/__init__.py
diff --git a/src/leap/mail/smtp/smtprelay.py b/src/leap/mail/smtp/smtprelay.py
new file mode 100644
index 0000000..6479873
--- /dev/null
+++ b/src/leap/mail/smtp/smtprelay.py
@@ -0,0 +1,246 @@
+"""
+LEAP SMTP encrypted relay.
+"""
+
+import re
+import gnupg
+from zope.interface import implements
+from StringIO import StringIO
+from twisted.mail import smtp
+from twisted.internet.protocol import ServerFactory
+from twisted.internet import reactor
+from twisted.internet import defer
+from twisted.application import internet, service
+from twisted.python import log
+from email.Header import Header
+from leap import soledad
+
+
+class SMTPInfoNotAvailable(Exception):
+    pass
+
+
+class SMTPFactory(ServerFactory):
+    """
+    Factory for an SMTP server with encrypted relaying capabilities.
+    """
+
+    def __init__(self, soledad, gpg=None):
+        self._soledad = soledad
+        self._gpg = gpg
+
+    def buildProtocol(self, addr):
+        "Return a protocol suitable for the job."
+        # TODO: use ESMTP here.
+        smtpProtocol = smtp.SMTP(SMTPDelivery(self._soledad, self._gpg))
+        smtpProtocol.factory = self
+        return smtpProtocol
+
+
+class SMTPDelivery(object):
+    """
+    Validate email addresses and handle message delivery.
+    """
+
+    implements(smtp.IMessageDelivery)
+
+    def __init__(self, soledad, gpg=None):
+        self._soledad = soledad
+        if gpg:
+            self._gpg = gpg
+        else:
+            self._gpg = GPGWrapper()
+
+    def receivedHeader(self, helo, origin, recipients):
+        myHostname, clientIP = helo
+        headerValue = "by %s from %s with ESMTP ; %s" % (
+            myHostname, clientIP, smtp.rfc822date())
+        # email.Header.Header used for automatic wrapping of long lines
+        return "Received: %s" % Header(headerValue)
+
+    def validateTo(self, user):
+        """Assert existence of and trust on recipient's GPG public key."""
+        # try to find recipient's public key
+        try:
+            # this will raise an exception if key is not found
+            trust = self._gpg.find_key(user.dest.addrstr)['trust']
+            # if key is not ultimatelly trusted, then the message will not
+            # be encrypted. So, we check for this below
+            #if trust != 'u':
+            #    raise smtp.SMTPBadRcpt(user)
+            log.msg("Accepting mail for %s..." % user.dest)
+            return lambda: EncryptedMessage(user, soledad=self._soledad,
+                                            gpg=self._gpg)
+        except LookupError:
+            # if key was not found, check config to see if will send anyway.
+            if self.encrypted_only:
+                raise smtp.SMTPBadRcpt(user)
+            # TODO: send signal to cli/gui that this user's key was not found?
+            log.msg("Warning: will send an unencrypted message (because "
+                    "encrypted_only' is set to False).")
+
+    def validateFrom(self, helo, originAddress):
+        # accept mail from anywhere. To reject an address, raise
+        # smtp.SMTPBadSender here.
+        return originAddress
+
+
+class EncryptedMessage():
+    """
+    Receive plaintext from client, encrypt it and send message to a
+    recipient.
+    """
+    implements(smtp.IMessage)
+
+    SMTP_HOSTNAME = "mail.leap.se"
+    SMTP_PORT = 25
+
+    def __init__(self, user, soledad,  gpg=None):
+        self.user = user
+        self._soledad = soledad
+        self.fetchConfig()
+        self.lines = []
+        if gpg:
+            self._gpg = gpg
+        else:
+            self._gpg = GPGWrapper()
+
+    def lineReceived(self, line):
+        """Store email DATA lines as they arrive."""
+        self.lines.append(line)
+
+    def eomReceived(self):
+        """Encrypt and send message."""
+        log.msg("Message data complete.")
+        self.lines.append('')  # add a trailing newline
+        self.parseMessage()
+        try:
+            self.encrypt()
+            return self.sendMessage()
+        except LookupError:
+            return None
+
+    def parseMessage(self):
+        """Separate message headers from body."""
+        sep = self.lines.index('')
+        self.headers = self.lines[:sep]
+        self.body = self.lines[sep + 1:]
+
+    def connectionLost(self):
+        log.msg("Connection lost unexpectedly!")
+        log.err()
+        # unexpected loss of connection; don't save
+        self.lines = []
+
+    def sendSuccess(self, r):
+        log.msg(r)
+
+    def sendError(self, e):
+        log.msg(e)
+        log.err()
+
+    def prepareHeader(self):
+        self.headers.insert(1, "From: %s" % self.user.orig.addrstr)
+        self.headers.insert(2, "To: %s" % self.user.dest.addrstr)
+        self.headers.append('')
+
+    def sendMessage(self):
+        self.prepareHeader()
+        msg = '\n'.join(self.headers + [self.cyphertext])
+        d = defer.Deferred()
+        factory = smtp.ESMTPSenderFactory(self.smtp_username,
+                                          self.smtp_password,
+                                          self.smtp_username,
+                                          self.user.dest.addrstr,
+                                          StringIO(msg),
+                                          d)
+        # the next call is TSL-powered!
+        reactor.connectTCP(self.SMTP_HOSTNAME, self.SMTP_PORT, factory)
+        d.addCallback(self.sendSuccess)
+        d.addErrback(self.sendError)
+        return d
+
+    def encrypt(self, always_trust=True):
+        # TODO: do not "always trust" here.
+        try:
+            fp = self._gpg.find_key(self.user.dest.addrstr)['fingerprint']
+            log.msg("Encrypting to %s" % fp)
+            self.cyphertext = str(
+                self._gpg.encrypt(
+                    '\n'.join(self.body), [fp], always_trust=always_trust))
+        except LookupError:
+            if self.encrypted_only:
+                raise
+            log.msg("Warning: sending unencrypted mail (because "
+                    "'encrypted_only' is set to False).")
+
+    # this will be replaced by some other mechanism of obtaining credentials
+    # for SMTP server.
+    def fetchConfig(self):
+        # TODO: Soledad/LEAP bootstrap should store the SMTP info on local db,
+        # so this relay can load it when it needs.
+        if not self._soledad:
+            # TODO: uncomment below exception when integration with Soledad is
+            # smooth.
+            #raise SMTPInfoNotAvailable()
+            # TODO: remove dummy settings below when soledad bootstrap is
+            # working.
+            self.smtp_host = ''
+            self.smtp_port = ''
+            self.smtp_username = ''
+            self.smtp_password = ''
+            self.encrypted_only = True
+        else:
+            self.smtp_config = self._soledad.get_doc('smtp_relay_config')
+            for confname in [ 
+                'smtp_host', 'smtp_port', 'smtp_username',
+                'smtp_password', 'encrypted_only',
+            ]:
+                setattr(self, confname, doc.content[confname])
+
+
+class GPGWrapper():
+    """
+    This is a temporary class for handling GPG requests, and should be
+    replaced by a more general class used throughout the project.
+    """
+
+    GNUPG_HOME = "~/.config/leap/gnupg"
+    GNUPG_BINARY = "/usr/bin/gpg"  # TODO: change this based on OS
+
+    def __init__(self, gpghome=GNUPG_HOME, gpgbinary=GNUPG_BINARY):
+        self.gpg = gnupg.GPG(gnupghome=gpghome, gpgbinary=gpgbinary)
+
+    def find_key(self, email):
+        """
+        Find user's key based on their email.
+        """
+        for key in self.gpg.list_keys():
+            for uid in key['uids']:
+                if re.search(email, uid):
+                    return key
+        raise LookupError("GnuPG public key for %s not found!" % email)
+
+    def encrypt(self, data, recipient, always_trust=True):
+        # TODO: do not 'always_trust'.
+        return self.gpg.encrypt(data, recipient, always_trust=always_trust)
+
+    def decrypt(self, data):
+        return self.gpg.decrypt(data)
+
+    def import_keys(self, data):
+        return self.gpg.import_keys(data)
+
+
+# service configuration
+port = 25
+user_email = 'user@leap.se' # TODO: replace for real mail from gui/cli
+
+# instantiate soledad for client app storage and sync
+s = soledad.Soledad(user_email)
+factory = SMTPFactory(s)
+
+# enable the use of this service with twistd
+application = service.Application("LEAP SMTP Relay")
+service = internet.TCPServer(port, factory)
+service.setServiceParent(application)
diff --git a/src/leap/mail/smtp/tests/185CA770.key b/src/leap/mail/smtp/tests/185CA770.key
new file mode 100644
index 0000000..587b416
--- /dev/null
+++ b/src/leap/mail/smtp/tests/185CA770.key
@@ -0,0 +1,79 @@
+-----BEGIN PGP PRIVATE KEY BLOCK-----
+Version: GnuPG v1.4.10 (GNU/Linux)
+
+lQIVBFCJNL4BEADFsI1TCD4yq7ZqL7VhdVviTuX6JUps8/mVEhRVOZhojLcTYaqQ
+gs6T6WabRxcK7ymOnf4K8NhYdz6HFoJN46BT87etokx7J/Sl2OhpiqBQEY+jW8Rp
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+-----END PGP PRIVATE KEY BLOCK-----
diff --git a/src/leap/mail/smtp/tests/185CA770.pub b/src/leap/mail/smtp/tests/185CA770.pub
new file mode 100644
index 0000000..38af19f
--- /dev/null
+++ b/src/leap/mail/smtp/tests/185CA770.pub
@@ -0,0 +1,52 @@
+-----BEGIN PGP PUBLIC KEY BLOCK-----
+Version: GnuPG v1.4.10 (GNU/Linux)
+
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+=RChS
+-----END PGP PUBLIC KEY BLOCK-----
diff --git a/src/leap/mail/smtp/tests/__init__.py b/src/leap/mail/smtp/tests/__init__.py
new file mode 100644
index 0000000..d7b942a
--- /dev/null
+++ b/src/leap/mail/smtp/tests/__init__.py
@@ -0,0 +1,218 @@
+import os
+import shutil
+import tempfile
+
+from twisted.trial import unittest
+
+from leap.common.testing.basetest import BaseLeapTest
+from leap.mail.smtp.smtprelay import GPGWrapper
+
+
+class OpenPGPTestCase(unittest.TestCase, BaseLeapTest):
+
+    def setUp(self):
+        # mimic LeapBaseTest.setUpClass behaviour, because this is deprecated
+        # in Twisted: http://twistedmatrix.com/trac/ticket/1870
+        self.old_path = os.environ['PATH']
+        self.old_home = os.environ['HOME']
+        self.tempdir = tempfile.mkdtemp(prefix="leap_tests-")
+        self.home = self.tempdir
+        bin_tdir = os.path.join(
+            self.tempdir,
+            'bin')
+        os.environ["PATH"] = bin_tdir
+        os.environ["HOME"] = self.tempdir
+        # setup our own stuff
+        self.gnupg_home = self.tempdir + '/gnupg'
+        os.mkdir(self.gnupg_home)
+        self.email = 'leap@leap.se'
+        self._gpg = GPGWrapper(gpghome=self.gnupg_home)
+
+        self.assertEqual(self._gpg.import_keys(PUBLIC_KEY).summary(),
+                         '1 imported', "error importing public key")
+        self.assertEqual(self._gpg.import_keys(PRIVATE_KEY).summary(),
+                         # note that gnupg does not return a successful import
+                         # for private keys. Bug?
+                         '0 imported', "error importing private key")
+
+    def tearDown(self):
+        # mimic LeapBaseTest.tearDownClass behaviour
+        os.environ["PATH"] = self.old_path
+        os.environ["HOME"] = self.old_home
+        # safety check
+        assert self.tempdir.startswith('/tmp/leap_tests-')
+        shutil.rmtree(self.tempdir)
+
+    def test_openpgp_encrypt_decrypt(self):
+        "Test if openpgp can encrypt and decrypt."
+        text = "simple raw text"
+        encrypted = str(self._gpg.encrypt(text, KEY_FINGERPRINT,
+                                          # TODO: handle always trust issue
+                                          always_trust=True))
+        self.assertNotEqual(text, encrypted, "failed encrypting text")
+        decrypted = str(self._gpg.decrypt(encrypted))
+        self.assertEqual(text, decrypted, "failed decrypting text")
+
+
+# Key material for testing
+KEY_FINGERPRINT = "E36E738D69173C13D709E44F2F455E2824D18DDF"
+PUBLIC_KEY = """
+-----BEGIN PGP PUBLIC KEY BLOCK-----
+Version: GnuPG v1.4.10 (GNU/Linux)
+
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+=MuOY
+-----END PGP PUBLIC KEY BLOCK-----
+"""
+PRIVATE_KEY = """
+-----BEGIN PGP PRIVATE KEY BLOCK-----
+Version: GnuPG v1.4.10 (GNU/Linux)
+
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+RZXoH+FTg9UAW87eqU610npOkT6cRaBxaMK/mDtGNdc=
+=JTFu
+-----END PGP PRIVATE KEY BLOCK-----
+"""
diff --git a/src/leap/mail/smtp/tests/mail.txt b/src/leap/mail/smtp/tests/mail.txt
new file mode 100644
index 0000000..9542047
--- /dev/null
+++ b/src/leap/mail/smtp/tests/mail.txt
@@ -0,0 +1,10 @@
+HELO drebs@riseup.net
+MAIL FROM: drebs@riseup.net
+RCPT TO: drebs@riseup.net
+RCPT TO: drebs@leap.se
+DATA
+Subject: leap test
+
+Hello world!
+.
+QUIT
diff --git a/src/leap/mail/smtp/tests/test_smtprelay.py b/src/leap/mail/smtp/tests/test_smtprelay.py
new file mode 100644
index 0000000..eaa4d04
--- /dev/null
+++ b/src/leap/mail/smtp/tests/test_smtprelay.py
@@ -0,0 +1,78 @@
+from datetime import datetime
+import re
+from leap.email.smtp.smtprelay import (
+    SMTPFactory,
+    #SMTPDelivery, # an object
+    EncryptedMessage,
+)
+from leap.email.smtp import tests
+from twisted.test import proto_helpers
+from twisted.mail.smtp import User
+
+
+# some regexps
+IP_REGEX = "(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}" + \
+    "([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])"
+HOSTNAME_REGEX = "(([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9\-]*[a-zA-Z0-9])\.)*" + \
+    "([A-Za-z0-9]|[A-Za-z0-9][A-Za-z0-9\-]*[A-Za-z0-9])"
+IP_OR_HOST_REGEX = '(' + IP_REGEX + '|' + HOSTNAME_REGEX + ')'
+
+
+class TestSmtpRelay(tests.OpenPGPTestCase):
+
+    EMAIL_DATA = ['HELO relay.leap.se',
+                  'MAIL FROM: <user@leap.se>',
+                  'RCPT TO: <leap@leap.se>',
+                  'DATA',
+                  'From: User <user@leap.se>',
+                  'To: Leap <leap@leap.se>',
+                  'Date: ' + datetime.now().strftime('%c'),
+                  'Subject: test message',
+                  '',
+                  'This is a secret message.',
+                  'Yours,',
+                  'A.',
+                  '',
+                  '.',
+                  'QUIT']
+
+    def assertMatch(self, string, pattern, msg=None):
+        if not re.match(pattern, string):
+            msg = self._formatMessage(msg, '"%s" does not match pattern "%s".'
+                                           % (string, pattern))
+            raise self.failureException(msg)
+
+    def test_relay_accepts_valid_email(self):
+        """
+        Test if SMTP server responds correctly for valid interaction.
+        """
+
+        SMTP_ANSWERS = ['220 ' + IP_OR_HOST_REGEX +
+                        ' NO UCE NO UBE NO RELAY PROBES',
+                        '250 ' + IP_OR_HOST_REGEX + ' Hello ' +
+                        IP_OR_HOST_REGEX + ', nice to meet you',
+                        '250 Sender address accepted',
+                        '250 Recipient address accepted',
+                        '354 Continue']
+        proto = SMTPFactory(None, self._gpg).buildProtocol(('127.0.0.1', 0))
+        transport = proto_helpers.StringTransport()
+        proto.makeConnection(transport)
+        for i, line in enumerate(self.EMAIL_DATA):
+            proto.lineReceived(line + '\r\n')
+            self.assertMatch(transport.value(),
+                             '\r\n'.join(SMTP_ANSWERS[0:i + 1]))
+        proto.setTimeout(None)
+
+    def test_message_encrypt(self):
+        """
+        Test if message gets encrypted to destination email.
+        """
+        proto = SMTPFactory(None, self._gpg).buildProtocol(('127.0.0.1', 0))
+        user = User('leap@leap.se', 'relay.leap.se', proto, 'leap@leap.se')
+        m = EncryptedMessage(user, None, self._gpg)
+        for line in self.EMAIL_DATA[4:12]:
+            m.lineReceived(line)
+        m.parseMessage()
+        m.encrypt()
+        decrypted = str(self._gpg.decrypt(m.cyphertext))
+        self.assertEqual('\n'.join(self.EMAIL_DATA[9:12]), decrypted)