i switched over from Debian Sarge to Debian Etch today. After restoring the virtual domains with virtualmin everything seems to work. But i have problems getting the mailsystem to work.
With sarge, i followed http://ubuntuforums.org/archive/index.php/t-138377.html
and everything worked afterwards.
But with etch, its not working. Postfix complains, that Plain Passwords would'nt be allowed. I looked at the configuration files and found nothing wrong.
I already opened a message at the "Help"-Forum regarding this problem. Please have a look at http://www.virtualmin.com/forums/help-home-for-newbies/postfix-error-pla...
It would be nice if somebody from the virtualmin-crew would be so kind and have a look at my postfix-configuration, as i do not know what to do next. If it is cost-free, i will send my ip and login information