Postfix minimal configuration
What is the minimum I have to do to configure postfix to accept incoming SMTP messages and store them somewhere? I need to set up a mail server in a real hurry, it doesn't have to do anything fancy, just be the MX record for a domain containing 3 mailboxes for a couple of weeks. I don't really need pop or imap access to begin with if I can log on to the localhost and read it on there.
Or if it's easier to do this using sendmail let me know what I need to do ...
The only tutorials I can find are extremely long winded and involve steps that aren't necessary for what I want to achieve.