Re: [Fwd: Multiple PTR and reject_unknown_helo_hostname]

[Wietse Venema]

James B. Byrne:
> 192.168.0.1     IN PTR mail1.domain.tld.
> 192.168.0.1     IN PTR mail2.domain.tld.
> 192.168.0.1     IN PTR mail3.domain.tld.

For that to work EVERY name needs to resolve to 192.168.0.1.
Postfix is not going to try all possible reverse mappings.
Depending on the system library it may get no more than one name.

        Wietse