How to set up a mail server on Ubuntu?

Question

Mail server

There is a server running Ubuntu 12.04.3 LTS. There is a development.mydomain.com domain. You need to set up a mail server (receiving and sending letters) on Postfix. I request help in step-by-step configuration and description of all config commands. Setup without mysql. Interested in the most minimal set for the operation of the mail server. Everything that is found in Google is too redundant, you need the very minimum, I repeat, so that further, having understood the basics, I could build a more complex mail server with preference and poetesses.

Answer 1

habrahabr.ru/post/143570/
habrahabr.ru/post/53550/
www.opennet.ru/docs/RUS/postfix_soho/

Answer 2

Thank you all for your help. Mail works with a bang, in the most minimal possible variant.