Ari Pollak - Qmail MSPHow to set up a separate mail submission port (MSP) with Qmail Because a lot of ISPs have started blocking outgoing port 25 (SMTP) for their users, it's become slightly more difficult to send mail over SMTP via, say, a remotely hosted mail server. If you're using qmail with Bill Shupp's QMail Toaster patch, I've provided instructions here that let you set up an alternate port for authenticated out
