It is very common to need an outgoing mail capabilities. If you are using a VPS for your web site, or just you want outgoing mails on your home machine to work natively. Automatic messages from cron, UPS management, or even your blog about new comments are too important to lose.

I am using ArchLinux, but this guide is probably good for other distributions as well. I could not find a simple and concise guide for setting this up - this post is aimed to fill that gap.

First let’s install Postfix (why postfix?