What would be your suggestion if installing a FreeBSD 7 (7.2, actually) email server?
I am interested in:
- SMTP agent
- Imap/Pop backend
- Authentication (OS users, OpenLDAP)
- Anti-Spam server side tools
- WebMail frontend
Thanks a lot in advance.
There are so many different possibilities here. What you're really talking about is an email "stack" (much like web-server/web-app "stacks").
There are several, including Sendmail, Exim, Qmail, Postfix, and Courier. Sendmail has had most of its "issues" resolved, Exim is small and stable, Qmail is fast, and Postfix is "flexible", sturdy, and fairly easy to configure. I guess it's a function of which one makes the most sense to you.
There are also several, including UW-IMAP (don't), and Dovecot (does POP3/IMAP, supports SSL). Courier also has POP/IMAP services.
My personal preference:
Postfix MTA, Amavis spam/virus filter, ClamAV scanner, Dovecot supplies IMAP over SSL, and SquirrelMail for a web interface.
I do have to admit that I don't run FreeBSD, sorry. However, I did take the time to check the BSD ports to see if all these package are available, and they are. So choose what you like. :)
If I may throw my own $0.2 I'd recommend DSpam as an anti-spam tool. If you're not afraid of using greylisting (like postgrey) it's worth giving a try. I personally just love OpenBSD's spamd and I can see there's a FreeBSD fork in mail/spamd.