Originally Posted by till
Any errors in the file /var/log/mail.err ?
No completely empy. And like I said... email arrives to the designated user in his vmail account in /var/vmail/domain/user/new folder and I can read it on the server by using cat or vi or whatever. But I can't use any kind of client to connect to retrieve it. It's like the connection request is dropped instantly.
which is pretty much how squirrelmail reports it:
ERROR: Connection dropped by IMAP server.
If all else fails, I can do a reinstall. and possibly use 8.04LTS instead.