possible bad MX config' preventing email address verification

Jul 26 18:27:17 baden postgrey[3274]: action=pass, reason=client AWL, client_name=milan.sjobeck.com, client_address=70.102.131.197, sender=verification@emailtoid.net, recipient=jason@sjobeck.com
Jul 26 18:27:17 baden postfix/smtpd[19733]: NOQUEUE: reject: RCPT from milan.sjobeck.com[70.102.131.197]: 450 4.1.7 <verification@emailtoid.net>: Sender address rejected: unverified address: host relay2.netnames.net[212.53.64.44] said: 451 lowest numbered MX record points to local host (in reply to RCPT TO command); from=<verification@emailtoid.net> to=<jason@sjobeck.com> proto=ESMTP helo=<milan>

I am not able to confirm my email address since our mail filter wont allow your email through, for what seems like an invalid MX configuration in your DNS.</milan>