starttls and login authentication

Gregoire Seux kamaradclimber at gmail.com
Sun Dec 16 12:29:55 GMT 2012


Hello,

I'd like to use offlineimap to sync my personal mailbox (on my local
network) which is exposed with imap.
The imap server (dovecot 2.1.12) offers imap(s) and authentication by
login. I use offlineimap 6.5.4 on archlinux.

When trying to sync offlineimap, it seems that it tries to use plain
authentication. Offlineimap reports :
[Alert] Unsupported  authentication mechanism

The same error is reported my dovecot logs.

Offlineimap rc : 

[Account Bidounet]
localrepository = Bidounet-Local
remoterepository = Bidounet-Remote
maxconnection=1

[Repository Bidounet-Local]
type = Maildir
localfolders = ~/Mail/Bidounet

[Repository Bidounet-Remote]
type= IMAP
remoteuser = grego
remotehost = bidoune


In attachement the debug output.

Do you think I am doing something wrong ?

Thanks for any answer !

-- 
Grégoire
-------------- next part --------------
2012-12-16 13:25:44 INFO: OfflineImap 6.5.4 starting...
  Python: 2.7.3 Platform: linux2
  Args: /usr/bin/offlineimap -d imap -l transcript
2012-12-16 13:25:44 INFO: Debug mode: Forcing to singlethreaded.
2012-12-16 13:25:44 DEBUG: Now debugging for imap: IMAP protocol debugging
2012-12-16 13:25:44 DEBUG: Now debugging for : Other offlineimap related sync messages
2012-12-16 13:25:44 INFO: *** Processing account Bidounet
2012-12-16 13:25:44 INFO: Establishing connection to bidounet:143
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.12 Account sync Bidounet imaplib2 version 2.33
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.12 Account sync Bidounet imaplib2 debug level 5, buffer level 3
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.13 bidounet writer starting
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.13 bidounet reader starting using poll
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.13 Account sync Bidounet _request_push(continuation, None, {}) = FCHL0
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.13 Account sync Bidounet None:FCHL0.ready.wait
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.14 bidounet reader poll => [(6, 1)]
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.14 bidounet reader rcvd 115
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.14 bidounet reader < * OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE STARTTLS LOGINDISABLED] Dovecot ready.\r\n
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.23 bidounet handler starting
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.23 bidounet handler untagged_responses[OK] 0 += ["[CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE STARTTLS LOGINDISABLED] Dovecot ready."]
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.23 bidounet handler untagged_responses[CAPABILITY] 0 += ["IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE STARTTLS LOGINDISABLED"]
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.23 bidounet handler state_change_free.set
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.23 bidounet handler _request_pop(continuation, (False, '* OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE STARTTLS LOGINDISABLED] Dovecot ready.')) = FCHL0
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.23 bidounet handler None:FCHL0.ready.set
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.23 Account sync Bidounet _get_untagged_response(OK) => ['[CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE STARTTLS LOGINDISABLED] Dovecot ready.']
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.23 Account sync Bidounet state => NONAUTH
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.23 Account sync Bidounet [async] CAPABILITY ()
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.23 Account sync Bidounet state_change_pending.acquire
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.23 Account sync Bidounet state_change_pending.release
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.23 Account sync Bidounet _request_push(FCHL1, CAPABILITY, {}) = FCHL1
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.23 Account sync Bidounet data=FCHL1 CAPABILITY
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.23 Account sync Bidounet CAPABILITY:FCHL1.ready.wait
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.23 bidounet writer > FCHL1 CAPABILITY\r\n
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.23 bidounet reader poll => [(6, 1)]
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.23 bidounet reader rcvd 171
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.23 bidounet reader < * CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE STARTTLS LOGINDISABLED\r\n
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.23 bidounet reader < FCHL1 OK Pre-login capabilities listed, post-login capabilities have more.\r\n
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.23 bidounet handler untagged_responses[CAPABILITY] 1 += ["IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE STARTTLS LOGINDISABLED"]
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.23 bidounet handler state_change_free.set
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.23 bidounet handler _request_pop(FCHL1, ('OK', ['Pre-login capabilities listed, post-login capabilities have more.'])) = FCHL1
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.23 bidounet handler CAPABILITY:FCHL1.ready.set
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.23 Account sync Bidounet _get_untagged_response(CAPABILITY) => ['IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE STARTTLS LOGINDISABLED', 'IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE STARTTLS LOGINDISABLED']
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.23 Account sync Bidounet _untagged_response(OK, ?, CAPABILITY) => ['IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE STARTTLS LOGINDISABLED', 'IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE STARTTLS LOGINDISABLED']
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.23 Account sync Bidounet CAPABILITY: ('IMAP4REV1', 'LITERAL+', 'SASL-IR', 'LOGIN-REFERRALS', 'ID', 'ENABLE', 'IDLE', 'STARTTLS', 'LOGINDISABLED')
2012-12-16 13:25:44 DEBUG: [imap]: Using STARTTLS connection
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 Account sync Bidounet [sync] STARTTLS ()
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 Account sync Bidounet state_change_pending.acquire
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 Account sync Bidounet _request_push(FCHL2, STARTTLS, {}) = FCHL2
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 Account sync Bidounet data=FCHL2 STARTTLS
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 Account sync Bidounet STARTTLS:FCHL2.ready.wait
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet writer > FCHL2 STARTTLS\r\n
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader poll => [(6, 1)]
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader rcvd 1
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader poll => [(6, 1)]
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader rcvd 1
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader poll => [(6, 1)]
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader rcvd 1
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader poll => [(6, 1)]
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader rcvd 1
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader poll => [(6, 1)]
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader rcvd 1
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader poll => [(6, 1)]
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader rcvd 1
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader poll => [(6, 1)]
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader rcvd 1
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader poll => [(6, 1)]
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader rcvd 1
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader poll => [(6, 1)]
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader rcvd 1
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader poll => [(6, 1)]
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader rcvd 1
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader poll => [(6, 1)]
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader rcvd 1
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader poll => [(6, 1)]
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader rcvd 1
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader poll => [(6, 1)]
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader rcvd 1
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader poll => [(6, 1)]
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader rcvd 1
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader poll => [(6, 1)]
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader rcvd 1
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader poll => [(6, 1)]
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader rcvd 1
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader poll => [(6, 1)]
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader rcvd 1
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader poll => [(6, 1)]
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader rcvd 1
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader poll => [(6, 1)]
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader rcvd 1
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader poll => [(6, 1)]
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader rcvd 1
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader poll => [(6, 1)]
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader rcvd 1
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader poll => [(6, 1)]
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader rcvd 1
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader poll => [(6, 1)]
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader rcvd 1
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader poll => [(6, 1)]
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader rcvd 1
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader poll => [(6, 1)]
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader rcvd 1
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader poll => [(6, 1)]
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader rcvd 1
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader poll => [(6, 1)]
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader rcvd 1
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader poll => [(6, 1)]
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader rcvd 1
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.24 bidounet reader poll => [(6, 1)]
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.25 bidounet reader rcvd 1
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.25 bidounet reader poll => [(6, 1)]
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.25 bidounet reader rcvd 1
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.25 bidounet reader poll => [(6, 1)]
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.25 bidounet reader rcvd 1
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.25 bidounet reader poll => [(6, 1)]
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.25 bidounet reader rcvd 1
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.25 bidounet reader poll => [(6, 1)]
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.25 bidounet reader rcvd 1
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.25 bidounet reader poll => [(6, 1)]
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.25 bidounet reader rcvd 1
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.25 bidounet reader poll => [(6, 1)]
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.25 bidounet reader rcvd 1
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.25 bidounet reader poll => [(6, 1)]
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.25 bidounet reader rcvd 1
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.25 bidounet reader poll => [(6, 1)]
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.25 bidounet reader rcvd 1
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.25 bidounet reader < FCHL2 OK Begin TLS negotiation now.\r\n
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.25 bidounet reader finished
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.25 bidounet handler state_change_free.set
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.25 bidounet handler _request_pop(FCHL2, ('OK', ['Begin TLS negotiation now.'])) = FCHL2
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.25 Account sync Bidounet state_change_pending.release
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.25 bidounet handler STARTTLS:FCHL2.ready.set
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.27 Account sync Bidounet [async] CAPABILITY ()
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.27 Account sync Bidounet state_change_pending.acquire
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.27 Account sync Bidounet state_change_pending.release
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.27 Account sync Bidounet _request_push(FCHL3, CAPABILITY, {}) = FCHL3
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.27 Account sync Bidounet data=FCHL3 CAPABILITY
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.27 Account sync Bidounet CAPABILITY:FCHL3.ready.wait
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.27 bidounet writer > FCHL3 CAPABILITY\r\n
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.27 bidounet reader starting using poll
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.27 bidounet reader poll => [(6, 1)]
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.27 bidounet reader rcvd 159
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.27 bidounet reader < * CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE AUTH=LOGIN\r\n
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.27 bidounet handler untagged_responses[CAPABILITY] 0 += ["IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE AUTH=LOGIN"]
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.27 bidounet reader < FCHL3 OK Pre-login capabilities listed, post-login capabilities have more.\r\n
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.27 bidounet handler state_change_free.set
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.27 bidounet handler _request_pop(FCHL3, ('OK', ['Pre-login capabilities listed, post-login capabilities have more.'])) = FCHL3
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.27 bidounet handler CAPABILITY:FCHL3.ready.set
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.27 Account sync Bidounet _get_untagged_response(CAPABILITY) => ['IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE AUTH=LOGIN']
2012-12-16 13:25:44 DEBUG: [imap]:   25:44.27 Account sync Bidounet _untagged_response(OK, ?, CAPABILITY) => ['IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE AUTH=LOGIN']
2012-12-16 13:25:44 DEBUG: [imap]: Attempting plain authentication
2012-12-16 13:25:46 DEBUG: [imap]:   25:46.24 Account sync Bidounet [sync] LOGIN ('grego', '"mypassword"')
2012-12-16 13:25:46 DEBUG: [imap]:   25:46.24 Account sync Bidounet state_change_pending.acquire
2012-12-16 13:25:46 DEBUG: [imap]:   25:46.24 Account sync Bidounet _request_push(FCHL4, LOGIN, {}) = FCHL4
2012-12-16 13:25:46 DEBUG: [imap]:   25:46.24 Account sync Bidounet data=FCHL4 LOGIN grego "mypassword"
2012-12-16 13:25:46 DEBUG: [imap]:   25:46.24 bidounet writer > FCHL4 LOGIN grego "mypassword"\r\n
2012-12-16 13:25:46 DEBUG: [imap]:   25:46.24 Account sync Bidounet LOGIN:FCHL4.ready.wait
2012-12-16 13:25:46 DEBUG: [imap]:   25:46.24 bidounet reader poll => [(6, 1)]
2012-12-16 13:25:46 DEBUG: [imap]:   25:46.24 bidounet reader rcvd 56
2012-12-16 13:25:46 DEBUG: [imap]:   25:46.24 bidounet reader < FCHL4 NO [ALERT] Unsupported authentication mechanism.\r\n
2012-12-16 13:25:46 DEBUG: [imap]:   25:46.24 bidounet handler state_change_free.set
2012-12-16 13:25:46 DEBUG: [imap]:   25:46.24 bidounet handler _request_pop(FCHL4, ('NO', ['[ALERT] Unsupported authentication mechanism.'])) = FCHL4
2012-12-16 13:25:46 DEBUG: [imap]:   25:46.24 bidounet handler LOGIN:FCHL4.ready.set
2012-12-16 13:25:46 DEBUG: [imap]:   25:46.24 bidounet handler untagged_responses[ALERT] 0 += [""]
2012-12-16 13:25:46 DEBUG: [imap]:   25:46.24 bidounet handler NO response: [ALERT] Unsupported authentication mechanism.
2012-12-16 13:25:46 DEBUG: [imap]:   25:46.24 Account sync Bidounet state_change_pending.release
2012-12-16 13:25:46 INFO: ERROR: While attempting to sync account 'Bidounet'
  [ALERT] Unsupported authentication mechanism.
2012-12-16 13:25:46 INFO: ['  File "/usr/lib/python2.7/site-packages/offlineimap/accounts.py", line 234, in syncrunner\n    self.sync()\n', '  File "/usr/lib/python2.7/site-packages/offlineimap/accounts.py", line 290, in sync\n    remoterepos.getfolders()\n', '  File "/usr/lib/python2.7/site-packages/offlineimap/repository/IMAP.py", line 268, in getfolders\n    imapobj = self.imapserver.acquireconnection()\n', '  File "/usr/lib/python2.7/site-packages/offlineimap/imapserver.py", line 266, in acquireconnection\n    self.plainauth(imapobj)\n', '  File "/usr/lib/python2.7/site-packages/offlineimap/imapserver.py", line 132, in plainauth\n    imapobj.login(self.username, self.getpassword())\n', '  File "/usr/lib/python2.7/site-packages/offlineimap/imaplib2.py", line 834, in login\n    self._deliver_exc(self.error, dat[-1], kw)\n', '  File "/usr/lib/python2.7/site-packages/offlineimap/imaplib2.py", line 1406, in _deliver_exc\n    raise exc(dat)\n']
2012-12-16 13:25:46 INFO: *** Finished account 'Bidounet' in 0:02
2012-12-16 13:25:46 WARNING: ERROR: Exceptions occurred during the run!
2012-12-16 13:25:46 WARNING: ERROR: While attempting to sync account 'Bidounet'
  [ALERT] Unsupported authentication mechanism.
2012-12-16 13:25:46 WARNING: 
Traceback:
  File "/usr/lib/python2.7/site-packages/offlineimap/accounts.py", line 234, in syncrunner
    self.sync()
  File "/usr/lib/python2.7/site-packages/offlineimap/accounts.py", line 290, in sync
    remoterepos.getfolders()
  File "/usr/lib/python2.7/site-packages/offlineimap/repository/IMAP.py", line 268, in getfolders
    imapobj = self.imapserver.acquireconnection()
  File "/usr/lib/python2.7/site-packages/offlineimap/imapserver.py", line 266, in acquireconnection
    self.plainauth(imapobj)
  File "/usr/lib/python2.7/site-packages/offlineimap/imapserver.py", line 132, in plainauth
    imapobj.login(self.username, self.getpassword())
  File "/usr/lib/python2.7/site-packages/offlineimap/imaplib2.py", line 834, in login
    self._deliver_exc(self.error, dat[-1], kw)
  File "/usr/lib/python2.7/site-packages/offlineimap/imaplib2.py", line 1406, in _deliver_exc
    raise exc(dat)



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