I'm getting this notice when I login to Spamcop web interface:
Bounce error
Your email address, my email address has returned a bounce:
Subject: Delivery Status Notification (Failure)
Reason: 5.4.7 - Delivery expired (message too old) 550-'Reverse DNS verification fa=
How do I fix a reverse DNS issue like this? The mail server's DNS records look fine to me but I must be missing something.
Thanks