Connection log (2013-11-18 18:37:14 +0000):
Clearing connection to imap.1und1.de
Synchronizing mailbox (attempting to do it quickly): Junk
Selecting mailbox: Junk
Clearing connection to imap.1und1.de
Trying to connect to imap.1und1.de on port 993
Successful connection.
Initiating SSL/TLS...
Error: Failed SSL handshake.