I have a virtualmin install in Ubuntu 8.04, I had problems with digital certs for a while but now have that fixed. My only problem is that I cant send emails via imap clients (thunderbird & kmail) it fails to authenticate. I can use usermin with no problems at all. I don’t have any firewall installed & SMTP form the net works fine.
Is there anything I should be looking for? I have looked in the /var/logs for any clues but so far no good.
Any help would be appreciated.