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-rw-r--r--src/leap/bitmask/mail/incoming/service.py9
1 files changed, 9 insertions, 0 deletions
diff --git a/src/leap/bitmask/mail/incoming/service.py b/src/leap/bitmask/mail/incoming/service.py
index 00e7ee4f..a68adc22 100644
--- a/src/leap/bitmask/mail/incoming/service.py
+++ b/src/leap/bitmask/mail/incoming/service.py
@@ -614,6 +614,14 @@ class IncomingMail(Service):
return buf.getvalue()
def _extract_signature(self, msg):
+ """
+ Extract and return the signature from msg.
+
+ Remove the signature part from msg. For that we modify the content type
+ from multipart/signed to multipart/mixed. Even for single part messages
+ we do multipart/signed, other options will require modifying the part
+ to extract it's MIME headers and promote them into the main headers.
+ """
body = msg.get_payload(0).get_payload()
if isinstance(body, str):
@@ -621,6 +629,7 @@ class IncomingMail(Service):
detached_sig = msg.get_payload(1).get_payload()
msg.set_payload(body)
+ msg.set_type('multipart/mixed')
return detached_sig
def _decryption_error(self, failure, msg):