Incorrect padding

ael law_ence.dev at ntlworld.com
Fri Feb 24 16:00:48 GMT 2017


offlineimap won't connect to a bt imap server:

OfflineIMAP 7.0.12
  Licensed under the GNU GPL v2 or any later version (with an OpenSSL exception)
Account sync bt:
 *** Processing account bt
 Establishing connection to mail.btinternet.com:993 (btserv)
 ERROR: While attempting to sync account 'bt'
  Incorrect padding
 *** Finished account 'bt' in 0:00
ERROR: Exceptions occurred during the run!
ERROR: While attempting to sync account 'bt'
  Incorrect padding

Traceback:
  File "/usr/share/offlineimap/offlineimap/accounts.py", line 278, in syncrunner
    self.__sync()
  File "/usr/share/offlineimap/offlineimap/accounts.py", line 341, in __sync
    remoterepos.getfolders()
  File "/usr/share/offlineimap/offlineimap/repository/IMAP.py", line 452, in get
folders
    imapobj = self.imapserver.acquireconnection()
  File "/usr/share/offlineimap/offlineimap/imapserver.py", line 540, in acquireconnection
    self.__authn_helper(imapobj)
  File "/usr/share/offlineimap/offlineimap/imapserver.py", line 406, in __authn_helper
    if func(imapobj):
  File "/usr/share/offlineimap/offlineimap/imapserver.py", line 336, in __authn_plain
    imapobj.authenticate('PLAIN', self.__plainhandler)
  File "/usr/lib/python2.7/dist-packages/imaplib2.py", line 705, in authenticate
    typ, dat = self._simple_command('AUTHENTICATE', mechanism.upper())
  File "/usr/lib/python2.7/dist-packages/imaplib2.py", line 1692, in _simple_command
    return self._command_complete(self._command(name, *args), kw)
  File "/usr/lib/python2.7/dist-packages/imaplib2.py", line 1418, in _command
    literal = literator(data, rqb)
  File "/usr/lib/python2.7/dist-packages/imaplib2.py", line 2283, in process
    ret = self.mech(self.decode(data))
  File "/usr/lib/python2.7/dist-packages/imaplib2.py", line 2316, in decode
    return binascii.a2b_base64(inp)


Before I start digging, does anyone recognise what is wrong here?

-------------------------------
It is configured as:

[Repository btlocal]
type = Maildir
localfolders = ~/Mail/bt
sep = /
# Next again to help flash conservation
restoreatime = yes

[Repository btserv]
type = IMAP
ssl = yes
sslcacertfile = /etc/ssl/certs/ca-certificates.crt
remoteprt = 993
remotehost = mail.btinternet.com
remoteuser = Notarealuser at btinternet.com

No problems working with 2 other imap servers. Probably a bt
"eccentricity".


Thanks for any suggestions.

ael





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