Hi all,
Thx to Duarte for his help but it is not a DNS problem.
These error messages only appear for these emails.
Dozen and dozen of others are ok.
The problem is also the fact that that seems to be a message from fetchmail.
I use fetchmail only to get emails from another server to give them
Failure to resolve an address indicates that either the domain name does
not exist or a DNS configuration issue. Error messages in original
message support this...
Have you checked the server mail logs, attempted to resolve the
addresses (i.e with PING), and checked the DNS entries on an
