On Dec 6, 2011, at 4:26 PM, Rick Hazey wrote:
> Thanks for the insight. The warning "greeted me with my own hostname" appears
> in the log file when delivery of the bounce is attempted. Sounds like a bad
> assumption on my part: I assumed since it was labeled a warning it wasn't
> fatal but a notification.
>
> Both SMTP servers do have the same hostname. This was intentional since
> incoming (via Kerio) and outgoing (via Postfix) are on the same IP and my
> goal was for the hostname to match forward and reverse DNS.
>
> Is there no workaround? Or is my configuration flawed and to be avoided?
Hi Rick,
you want unique host names for your systems that will be sending email. This
will also help authenticate your relays as valid senders.
you can use dns to achieve a round robin approach
IN MX 10 192.168.107.8
IN MX 10 192.168.107.13
IN MX 10 192.168.107.14
smtp 60 IN A 192.168.107.8
smtp 60 IN A 192.168.107.13
smtp 60 IN A 192.168.107.14
smtp1 IN A 192.168.107.8
smtp2 IN A 192.168.107.13
smtp3 IN A 192.168.107.14
IN MX 10 mx1.example.com.
IN MX 20 mx2.example.com.
8.107.168.192.in-addr.arpa. IN PTR smtp1.example.com.
13.107.168.192.in-addr.arpa. IN PTR smtp2.example.com.
14.107.168.192.in-addr.arpa. IN PTR smtp2.example.com.
