On 09/07/11 18:15, lee wrote: > Andrew McGlashan <andrew.mcglas...@affinityvision.com.au> writes: > >> Can rDNS lookups for different IPs return the same result such as >> "mail.example.com" or must each IP have it's own unique PTR record >> name? > > Apparently they can, though I don't like the idea. For outgoing email, > you need to make sure that the hostname given in [E]HLO statements and > the IP address of the host connecting to a remote MTA always match when > the remote MTA resolves either. You may send me some test mails to > check. > >
My mail server is behind a NAT gateway in IPv4, and directly connects in IPv6. What shoud I configure it for HELO : the name of the NAT gateway (for IPv4) or its own name (IPv6 only from outside) ? This kind of check is useless and makes loose too many legit emails. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/4e188052.2030...@rail.eu.org
