On Dec 29, 2007, at 5:55 PM, James G. Sack (jim) wrote:
So it looks like we[you] are going through an unnecessary step just because RoadRunner is violating rfc2821 (if I understand jhriv's explanation)? Should I complain to RR?
No. The chunk of RFC being discussed by jhriv et al is not applicable to this situation. What the RFC says you can't do is refuse mail if the HELO domain name doesn't *match* the one retrieved from reverse DNS.
If I attach to your mail server from 123.223.233.234 and say "HELO josh.domain.com", and then your mail server does a reverse DNS query for 123.223.233.234 and gets back "mail.domain.com", you're not supposed to drop me. That's not what's happening here...
In our case, our mail server is attaching to RR from 63.98.246.161 and saying "HELO sparkplug.kernel-panic.org", and RR is doing a reverse DNS query on 63.98.246.161 and getting back NXDOMAIN (no such record).
So the part that applies to our situation and explains RR's mail rejection is RFC 1912 part 2.1 which says, "For every IP address, there should be a matching PTR record in the in-addr.arpa domain."
And... I just checked, and the reverse DNS is now in place, so you should be able to get list mail again. I'll send you another test message from sparky right now.
-- Joshua Penix http://www.binarytribe.com Binary Tribe Linux Integration Services & Network Consulting -- [email protected] http://www.kernel-panic.org/cgi-bin/mailman/listinfo/kplug-steer
