IMAP/POP3/SMTP errors since 8.3.0

[schlingel]

Hi there,

since I upgraded to 8.3.0 IMAP/POP3/SMTP has errors all the time. It is not possible to connect to the mailserver or send emails as "the connection failed". It doesn't matter what email client you use or if you are using POP or IMAP. If you try to send mail the same thing happens. I check the /usr/local/.../log/maillag and there are no errors at all. The /var/log logfiles don't contain anything suspicious too.
I tried the qmail fix that is floating around somewhere but it didn't help. Restarting courier or qmail doesn't solve the problem. The only thing that fixes this temporarily is a system reboot.
The server is running on Suse 10.2 and has MySQL 5 (what it already had before when it was working).
Any Ideas? Is there anything I can look?

 

[Expert]

I have this problem too.

 

[pippin]

It seems i have the same problem

 

[Blackbit@]

TCP cancellations?

If the Logins on POP and IMAP work and Authentication is configured correctly in the mailclient-setup, i would guess you got problems with TCP-Packets. You can trace all TCP traffic with "tcpdump" like this: "tcpdump -nvi eth0 | grep <ip>". Grep the IP of the remote client by searching for the LOGIN-Line of your user. Hope you find something here.

Btw. If you don't get any LOGIN-Messages in /var/log/mail, configure /etc/courier-imap/imapd to debug on level 2. You'll find that specific line i bet.

Regards,
Blackbit