Setting up a SMTP Server
I have a small VPS (1GB RAM, 10GB Disk, 5 IP's) and i would like to set up a SMTP Server, i would like to:
Limit users emails/month
Limit users IP's (etc a user can have 1 dedicated IP, and another 3 users can share 1 IP)
Web UI Would be a cool touch
Server will only send mail, no receiving.
What would be the best script for this?