On Mon, 22 Sep 2008, Dave Koontz wrote:
Rose, Bobby wrote ... (9/22/2008 10:24 AM):
I had the same issue and found that the system that's relaying
(216.129.105.40) those confirmation emails doesn't have a PTR record.
You'd think someone selling a antispam/email appliance would be familiar
with the RFCs.
That would explain why I got no confirmation, we do not accept email
from IP's without a PTR record.
I agree, if true this looks pretty bad for a so called antispam
company. I will check our logs when I return from vacation and verify
what you are seeing. Can anyone else confirm in the mean time?
Yep.
Sep 21 23:52:53 smtpgate postfix/smtpd[84422]: connect from
unknown[216.129.105.40]:48748
Sep 21 23:52:53 smtpgate postfix/smtpd[84422]: NOQUEUE: reject: RCPT from
unknown[216.129.105.40]:48748: 550 5.7.1 Client host rejected: cannot find your reverse hostname,
[216.129.105.40]; from=<[EMAIL PROTECTED]> to=<[EMAIL PROTECTED]> proto=ESMTP
helo=<barracudacentral.org>
Sep 21 23:52:53 smtpgate postfix/smtpd[84422]: disconnect from
unknown[216.129.105.40]:48748
-d
