This is really ezmlm documentation, but I certanly would have been happy if I found it anywhere during my time of trial. I am not a Linux expert, as you probably will notice, so things I do/did that might sound incredibly stupid to those who do know. I blame hard-to-find documentation :)
I wanted a page where a visitor could add their address to my mailinglist. That shouldn't be too hard, or atleastso I thought...
First I tried mailing the mailinglist. For some reason, the mailinglist didn't see my "From:" -header and it failed miserably.
Then I tried to use system() to call ezmlm-sub, which only produced the error-code 111. That was an access problem. So, I tried making the mailinglist availible to the website, but the change in permissions caused the mailserver to malfunction (as opposed to mailfunction....). It took a while to sort that mess out.
I couldn't find any guide as howto add mysql-support. The big problem was how to know which tables was needed. Apperantly, this is all that is needed:
ezmlm-mktab listname | mysql -u root -p databasename
Then its just adding the mailinglist with mysql-support i qmailadmin. It doesn't seem to allow socket connection to the database, so iptables has to allow local connections to the mysql port.
Hope this helps someone.