Not a bug per se: reverse dns of tieinterceptor2.discourse.org IPv4 broken

Site Feedback
1 
NOQUEUE: reject: RCPT from unknown[64.71.148.4]: 450 4.7.1 Client host rejected:
  cannot find your hostname, [64.71.148.4]; from=<noreply@discourse.haproxy.org>
  to=<target@mail.address> proto=ESMTP helo=<tieinterceptor2.discourse.org>

IPv6 works properly, so i could actually receive the mail.

probably something for @sam

2

I am pretty sure we have been through this adventure once :slightly_smiling:

3

yeah i dont feel like fighting such fight atm. I will just finish with your admin is wrong.

I will keep the setting. Especially because the IPv6 part is configured properly.