Mail problem after 10.4.3 upgrade

[jchang]

After I upgrade my mail server to 10.4.3.

1. I get the following error messages:

Jan 9 17:00:00 mailhost imap[13071]: login: [172.20.17.116] carolyn GSSAPI User logged in
Jan 9 17:00:00 mailhost imap[13071]: encoded packet size too big (4163 > 4096)
Jan 9 17:00:00 mailhost imap[13071]: IOERROR: reading message: unexpected end of file
Jan 9 17:00:00 mailhost imap[13071]: decoding error: generic failure; SASL(-1): generic failure: , closing connection

When a user gets the above messages, the mailbox acts weird. For example, a copy of email send does not save in the send folder. Additionally, the inbox will show new message and then disappear (repeating). This happens randomly.

2. When composing email, I would get a error “The message could not be saved”.

Need help to resolve some of the mail issues.

Thanks!

[jchang]

The following was a quote from Apple Tech:

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“I’m still investigating this. We’ve managed to reproduce the can’t move the message part. If I send a large enough message, it won’t get moved to the Sent folder. Engineering is currently building tools to generate some more debugging information.

The changes are that in 10.4.3, the mail server switched from using its own gssapi code to SASL. Both of these are from Cyrus but there is a problem. SASL was also changed in 10.4.4 because Open Directory had issues with large amounts of data. Anything that returned 64k of data would fail.

We’re not sure where the problem crept in.”

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To temporary resolve this issue. I have to change my authentication setting on the Mail.app from Kerberos to password.

Additional information can be found at:

Topic: Possible Bug in Mail.app
http://discussions.apple.com/thread.jspa?threadID=350387&tstart=0

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