do you have reverselookups on your external IP's? In the primary DNS for the domain, make sure there is a Pointer (PTR) record for each external IP address. (These records are also known as in-addr.arpa entries.)
Problem can be Ident aswell. Or no reverselookups on your official IP's.
do you have reverselookups on your external IP's? In the primary DNS for the domain, make sure there is a Pointer (PTR) record for each external IP address. (These records are also known as in-addr.arpa entries.)
Problem can be Ident aswell. Or no reverselookups on your official IP's.