I could have sworn this had been fixed ages ago in our installer. Did you install using install.sh?
Anyway, the problem is that dovecot on Debian/Ubuntu is configured to disallow plain text logins (which is the only kind that can work with standard users via PAM!). Edit /etc/dovecot.conf and change disable_plaintext_auth to "no". Save it, and restart dovecot. This problem will go away.
If I can’t find a dovecot file except in webmin or in logwatch folders, is that bad news if I have the same problem? (Ubuntu 8.04 too on the server, not installed via install.sh as there were sites on the server already)
dpkg -l ‘dovecot*’
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Cfg-files/Unpacked/Failed-cfg/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
||/ Name Version Description
++±=============================-=============================-==========================================================================
un dovecot (no description available)
ii dovecot-common 1:1.1.4-0ubuntu1.3 secure mail server that supports mbox and maildir mailboxes
ok, what do i do next? and thanks for your time by the way!