IMAP Error: Empty startup greeting

[mafrosis]

Hey all,

I've been getting this problem from roundcube and my IMAP server forever.. I really want to get it sorted now. All the threads relating to this are based on older versions of roundcube, so I've been upgrading to the latest version continually.

My current roundcube version is:
0.3.1-20091031

If anyone can answer any of the following it would help me greatly:

1) What exactly does "empty startup greeting" mean?
2) Is this a roundcube problem or IMAP server problem?
3) Where in the roundcube source is this error being thrown?
4) The problem is sporadic, so really hard to debug. Any ideas why it happens only sometimes?

Thanks for any input!
fro

[alec]

1) What exactly does "empty startup greeting" mean?
2) Is this a roundcube problem or IMAP server problem?
3) Where in the roundcube source is this error being thrown?
4) The problem is sporadic, so really hard to debug. Any ideas why it happens only sometimes?

1) IMAP server should send greeting message on connect.
2) Probably IMAP's
3) lib/imap.inc: iil_Connect()
4) Atually you can't, imap_debug will log empty string.

[mafrosis]

Thanks for your reply.

So when I set imap_debug=true I should be seeing more stuff in my log file?

Also, can you clarify what you mean by the following? I don't mind getting in the code and doing some debugging - I just had no idea where to start..

4) Atually you can't, imap_debug will log empty string.