I have tracked down my problems to a call to sasl_decode in prot_fill.
To recap: I am getting IOERROR: unexpected end of file in my log file. It turns out that if the client has Kerberos GSSAI authentication and the client tries to do an "APPEND" command, it frequently fails (but not always). The rest of my Kerberos stuff appears to be fine.
The APPEND is sent across to the server. The client can be set up to do LITERAL+ or not. The client sends all of the message in either case. The server reads all of the packets. Usually the first packets go through the sasl_decode and result in valid text. But after the first block (4096) or so of data, the remaining data is lost and sasl_decode reports back that there is only two valid characters. No errors are reported back (that I am aware of).
I ended my quest at this point last night and I probably will not pick it up again. For now, I can work around the problem by switching to plain authentication and just set up a VPN before using mail.
I hope this helps whoever follows in my footsteps... Perry ---- Cyrus Home Page: http://asg.web.cmu.edu/cyrus Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
