Hello!
(sorry for my trash-english)
Will Postfix handle properly multiple PTR records when
reject_unknown_client_hostname is in effect?
Like would it accept an e-mail when it comes from 1.2.3.4 and
2001::1234:2 if smtp_helo_name is mail.example.com when the DNS records
are the following?
example.com. MX 10 mail.example.com.
www.example.com. A 1.2.3.4
mail.example.com. A 1.2.3.4
www.example.com. AAAA 2001::1234:1
mail.example.com. AAAA 2001::1234:2
1.0.0.0.4.3.2.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.1.0.0.2.ip6.arpa.
PTR www.example.com.
2.0.0.0.4.3.2.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.1.0.0.2.ip6.arpa.
PTR mail.example.com.
4.3.2.1.in-addr.arpa. PTR www.example.com.
4.3.2.1.in-addr.arpa. PTR mail.example.com.
