How to setup SMTP server which mails wont be spammed by Gmail?

Hello, i was looking (on Google) for tutorials on how to setup quick, simple SMTP server on the Linux so i can use it to send email of my website that is hosted on different server.
Essential is for me on how to make sure receiving servers like Gmail do not mark my emails as SPAM, so it has my domain in the header. Is there any tutorial for this? i cant come up with correct google search phrasse to find any guide for this.

from Site & Server Administration http://ift.tt/1RdFc5A
via IFTTT
Thanks for your comment
Loading...