but why if I turn on reverse DSN is says as following:
02/12/2003 11:50:07 AM SMTP Server [04C8:006E-06E8] Connection from [209.143.0.75] rejected for policy reasons. IP address of connecting host not found in reverse DNS lookup.
Any ideas?
Do you think some settings are not right on bright net’s DNS setup?
Subject: Reverse DNS does not work for a particular IP
I’ve had some issues with this ‘feature’ also. I haven’t been able to nail it completely, but try some of the following in your testing…In your post you are only looking up the A record - perhaps Domino is looking for a valid MX record…
For a reverse lookup to work, the connecting host must be identified in DNS with an A record, and the message headers in the inbound email have to match the MX record associated with the A record of the connecting host.
Subject: Reverse DNS does not work for a particular IP
I assume you’ve tried the reverse lookup from the Domino server? It looks like you did it in the test from your nameserver (of course, they could be the same machine…).
If not, a test from the Domino server would tell you more, since that’s the beast looking up the address of the incoming connections!
(Since the reverse lookup works from some machine, there shouldn’t be a problem on bright.net’s side…)