Bounces from optonline
Here's the bounce message…
This is the mail system at host li52-167.localdomain.
I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.
For further assistance, please send mail to postmaster.
If you do so, please include this problem report. You can
delete your own text from the attached returned message.
The mail system
<
do not accept mail from dynamic-IP hosts or generic/machine-generated
hostnames - you must get a custom reverse-DNS name from your ISP for your
host: li52-167.localdomain:
command)
Reporting-MTA: dns; li52-167.localdomain
X-Postfix-Queue-ID: ACAF02120D
X-Postfix-Sender: rfc822;
Arrival-Date: Fri, 1 May 2009 13:15:21 -0400 (EDT)
Final-Recipient: rfc822;
Original-Recipient: rfc822;
Action: failed
Status: 5.7.1
Remote-MTA: dns; mx1.optonline.net
Diagnostic-Code: smtp; 550 5.7.1 We do not accept mail from dynamic-IP hosts or
generic/machine-generated hostnames - you must get a custom reverse-DNS
name from your ISP for your host: li52-167.localdomain:
4 Replies
@maxp1:
(reverse DNS is set up for our domain)
@maxp1:
Umm…..
@maxp1:(reverse DNS is set up for our domain)
> host mx1.optonline.net[167.206.4.77] said: 550 5.7.1 We
do not accept mail from dynamic-IP hosts or generic/machine-generated
hostnames - you must get a custom reverse-DNS name from your ISP for your
host: li52-167.localdomain
Did you set it to li52-167.localdomain?
If so, try to use something that looks less like a machine-generated name.
If not, then figure out why the reporting MTA thinks you did. Try "dig -x" on the ip address of your server and see what you get.