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-rw-r--r--src/leap/mail/imap/fetch.py4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/leap/mail/imap/fetch.py b/src/leap/mail/imap/fetch.py
index f69681a..b1c34ba 100644
--- a/src/leap/mail/imap/fetch.py
+++ b/src/leap/mail/imap/fetch.py
@@ -389,7 +389,9 @@ class LeapIncomingMail(object):
# try to obtain sender public key
senderPubkey = None
fromHeader = msg.get('from', None)
- if fromHeader is not None:
+ if fromHeader is not None \
+ and (msg.get_content_type() == 'multipart/encrypted' \
+ or msg.get_content_type() == 'multipart/signed'):
_, senderAddress = parseaddr(fromHeader)
try:
senderPubkey = self._keymanager.get_key_from_cache(