A dig shows that you don't have set up MX records, but that goes for both domains.
But what is worse, I can't connect to your mail server, if I run
Code:
telnet ptsgroup.ca 25
or
Code:
telnet ragault.com 25
nothing happens. So either it's your firewall, or the mail server (Postfix/Sendmail) isn't running.
What's in the mail log?