This policy would go down just a smidgeon easier if you would begin
accepting email via IPv6. I have only one static IPv4 address and I
cannot control reverse DNS for it, but I have a whole /48 IPv6 block
(which is intended to be typical for IPv6 customers), and I control
reverse DNS for that block. -- George Mitchell
This is our policy and has been in effect for about a year now or more.
Notice the word "may" in it. We do not outright reject for no RDNS, but
we are critical of servers that do not have it. The reason we do not
reject outright is that DNS is not always reliable. So we only reject in
certain "situations" when we 1) Know a server does not and has never had
rDNS and 2) Are getting reports of spam coming from that machine.
-Carl
systhine(_at_)tampabay(_dot_)rr(_dot_)com wrote:
I was just browsing my SMTP log and found this:
"America Online (AOL) and it's affiliated companies do not authorize the use
of it's proprietary computers and networks to accept, transmit, or
distribute unsolicited bulk e-mail sent from the internet. Effective
immediately: AOL may no longer accept connections from IP addresses which
have no reverse-DNS (PTR record) assigned."
I found it interesting. Is this a policy of many MTAs?
--
Carl Hutzler
Director, AntiSpam Operations
America Online Mail Operations
cdhutzler(_at_)aol(_dot_)com
703.265.5521 work
703.915.6862 cell