Lately I've tried to install Ispconfig but it complained that postfix is not install. Actually I'm not interested in providing mail server accounts
Just another question, right now I have a mail server with dovecot instead courier. If I implement mail server in the same server where ispconfig is running can I still use dovecot? I used workaround's howto to set it up. Which one do you prefere?
Dovecot is a POP3/IMAP server and no SMTP server, so you can install an SMTP server (such as Postfix) without problems.