[offlineimap] unable to sync, socket error:Too many read 0 (#214)

[psyche08]

Hi, I'm trying to sync my email, but it blocked on the error.Here is the log.

```
ERROR: Exceptions occurred during the run!
ERROR: command: UID => socket error: <type 'exceptions.IOError'> - Too many read 0

Traceback:
  File "/usr/local/Cellar/offline-imap/6.5.7/libexec/offlineimap/folder/IMAP.py", line 685, in _fetch_from_imap
    res_type, data = imapobj.uid('fetch', uids, query)
  File "/usr/local/Cellar/offline-imap/6.5.7/libexec/offlineimap/imaplib2.py", line 1176, in uid
    return self._simple_command('UID', command, *args, **kw)
  File "/usr/local/Cellar/offline-imap/6.5.7/libexec/offlineimap/imaplib2.py", line 1633, in _simple_command
    return self._command_complete(self._command(name, *args), kw)
  File "/usr/local/Cellar/offline-imap/6.5.7/libexec/offlineimap/imaplib2.py", line 1393, in _command_complete
    typ, dat = rqb.get_response('command: %s => %%s' % rqb.name)
  File "/usr/local/Cellar/offline-imap/6.5.7/libexec/offlineimap/imaplib2.py", line 188, in get_response
    raise typ(exc_fmt % str(val))

ERROR: Copying message 94 [acc: Payaplm]
  list.remove(x): x not in list

Traceback:
  File "/usr/local/Cellar/offline-imap/6.5.7/libexec/offlineimap/folder/Base.py", line 770, in copymessageto
    message = self.getmessage(uid)
  File "/usr/local/Cellar/offline-imap/6.5.7/libexec/offlineimap/folder/IMAP.py", line 280, in getmessage
    self.imapserver.releaseconnection(imapobj)
  File "/usr/local/Cellar/offline-imap/6.5.7/libexec/offlineimap/imapserver.py", line 162, in releaseconnection
    self.assignedconnections.remove(connection)
```

my os : os x 10.0.3 
offlineimap ver: 6.5.7
offlineimaprc:
```
type = IMAP
remotehost = imap.exmail.qq.com
remoteport = 993
remoteuser = ******@***.***
remotepass = *****
ssl = yes
sslcacertfile = /usr/local/etc/openssl/cert.pem
```
Thanks.

---
Reply to this email directly or view it on GitHub:
https://github.com/OfflineIMAP/offlineimap/issues/214
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