How To Configure Mail Server

After spending half a day configuring the Mail server (I use OC 1.5.6.4), I've noticed that the Contact Us form was not working. Another half a day later and finally found how to get the Mail notifications -and the Contact Us form-- to work.

Configure your Mail as follow:

-Select MAIL protocol (not SMTP)
-Mail Parameters: blank
-SMTP Host: check with your provider but something like mail.(your-domain).com
-SMTP Username: blank
-SMTP Password: blank
-SMTP Port: 25
-SMTP Timeout: 5

Try it, it works!