Postfix for use with Django

Question

I have a default Ubuntu 13.04 install on which I'm running a simple web game using Django. I need to be able to send email from that and the forums I'm using, I don't need to receive any mail or indeed any advanced functionality at all.

I've attempted about 5 times to install Postfix (I'd prefer not to use third-party SMTP servers) and every single time nothing works. I've tried following the null client sample config, I've tried following several guides on the internet and I'm at my wits' end.

The install works, then I try using sendmail from terminal and it hangs. I also do sudo postfix start and it tells me that it cannot bind to port 25, upon which I check what is running on that port and find sendmail. I do apt-get remove sendmail* and it still says that it cannot bind to that port.

Could someone give me a simple, step by step, idiot-proof guide to the simplest selfcontained way of sending email from a server?

Answer 1

1. As precaution execute as root apt-get -s remove sendmail.*. If something may be remove then repeat the command without -s (dry run).
2. You may use fuser -kuv 25/tcp to kill all processes listening on port 25 (smtp). The command is provided by psmisc Debian package.