Hey Paul....below is bounce back from receiving server:
(They're using SBC as their e-mail host provider, and all I'm hearing
about is no reverse DNS lookup)
The following recipient(s) could not be reached:
[EMAIL PROTECTED] on 6/21/2004 3:07 PM
This message was rejected due to the current administrative
policy by the destination server. Please retry at a later time. If
that fails, contact your system administrator.
<EXCHSVR3.4kidsent.com #4.3.2>
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Paul
Hutchings
Sent: Tuesday, June 22, 2004 2:11 PM
To: Exchange Discussions
Subject: RE: REVERSE DNS LOOKUP FOR EXCHANGE SERVER
The public IP address your exchange server uses for outgoing
connections.
Might be worth posting one of the bounces as it may make it clearer why
it's
being bounced.
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
> Sent: Tuesday, June 22, 2004 7:09 PM
> To: Exchange Discussions
> Subject: RE: REVERSE DNS LOOKUP FOR EXCHANGE SERVER
>
>
> Ok...do an rDNS on my internal exchange server IP address? Or actually
> the IP address from my ISP I use for mail?
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of Jim
> Kennedy
> Sent: Tuesday, June 22, 2004 2:00 PM
> To: Exchange Discussions
> Subject: RE: REVERSE DNS LOOKUP FOR EXCHANGE SERVER
>
>
> Any one blocking on what you describe is a tard, imho. Sending and
> receiving machines are different more often than not. Total insanity.
>
> However, I do not think that is what they are blocking on.
>
> Look at the IP for your sending machine. Do an rDNS on it. Does that
> match what your machine announces in the HELO? I bet it does not, and
> that is what they are rejecting on. The RFC's suggest reverse
> DNS match
> the HELO, but say that rejecting email based upon it should
> not be done.
> But many people are doing it, including AOL. I think it is bad, but it
> is their machine.
>
>
> From: On Behalf Of [EMAIL PROTECTED]
> Sent: Tuesday, June 22, 2004 1:24 PM
> Subject: RE: REVERSE DNS LOOKUP FOR EXCHANGE SERVER
>
>
> Hey Guys,
>
> Just wondering if anyone knows where I can find something on policy
> regulating reverse DNS lookups for your e-mail server? I have one guy
> that's blocking e-mails from my domain. Situation I have is the
> following:
> - E-mail is being received on one IP address from my ISP,
> but when mail
> leaves my exchange server it shows that it is coming from another IP
> address that I own from my ISP. So when they do a reverse DNS lookup,
> the IP addresses don't match up, and hence their rule blocks my mail.
>
> Thanks
>
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