Microsoft Exchange Server 2003 IMAP - login stream error

[jkolczasty]

Microsoft Exchange 2003 IMAP is not RFC strict, which makes libetpan useless with it. E.g. log from Claws-Mail with libetpan16 1.1:

[12:41:05] * message: Account 'xxxxxxxxxxxx': Connecting to IMAP4 server:
10.0.1.15...
[12:41:05] IMAP4< * OK Microsoft Exchange Server 2003 IMAP4rev1 server version
6.5.7638.1 (xxxxxxxxxxxx) ready.
[12:41:05] * message: IMAP connection is un-authenticated
[12:41:09] IMAP4> 1 CAPABILITY
[12:41:09] IMAP4< * CAPABILITY IMAP4 IMAP4rev1 IDLE LOGIN-REFERRALS
MAILBOX-REFERRALS NAMESPACE LITERAL+ UIDPLUS CHILDREN
[12:41:09] IMAP4< 1 OK CAPABILITY completed.
[12:41:09] IMAP4> Logging xxxxxxxxxxxx to 10.0.1.15 using LOGIN
[12:41:09] IMAP4< CAPABILITY completed.
[12:41:09] ** warning: IMAP error on 10.0.1.15: stream error
[12:41:09] ** warning: IMAP4 connection broken
[12:41:09] IMAP4< Error logging in to 10.0.1.15

Exchange responses with extra invalid line after "1 OK":
[12:41:09] IMAP4< 1 OK CAPABILITY completed.
[12:41:09] IMAP4< CAPABILITY completed.

Is it possible to write some workarounds for Exchange sh*t^W IMAP?

[dinhvh]

Could you try not to use CAPABILITY command when you detect an Exchange server?

[jkolczasty]

I'm just a user of Claws-Mail and there is no way to disable it in that MUA.

Bug on claws-mail (closed as wontfix):
http://www.thewildbeast.co.uk/claws-mail/bugzilla/show_bug.cgi?id=2750

I could write some test code, but not in the near future, ENOTIME. Sorry.