Over three people at last count (who really knows how many people can't email us) are receiving the following emails when they attempt to send the four people in my company an email.
Your message cannot be delivered to the following recipients:
Recipient address: exx@xyz.com
Reason: Illegal host/domain name found
Original-envelope-id: 0MHE00576LOMF9C0@st11p01mm-asmtp001.mac.com
Reporting-MTA: dns;st11p01mm-asmtp001.mac.com (tcp-daemon)
Arrival-date: Tue, 29 Jan 2013 20:17:11 +0000 (GMT)
Original-recipient: rfc822;exx@xyz.com
Final-recipient: rfc822;exx@xyz.com
Action: failed
Status: 5.4.4 (Illegal host/domain name found)
We can get emails but what is causing some people to receive the above returned email when sending to one of us four? What can be done to resolve this issue?
Thank you for looking.