> Since the two domain names don't match, is this the problem? Thanks.
You can't really think that, without providing any log snippets or
contacting the recipient domain, we can magically tell you why that
domain's Exchange server rejected your mail!
The bounce sent by Exchange indicates simply that the recipient does
not exist in their domain. There's no way to tell whether that's a
"secret code" for a problem with your reverse DNS.
Generally speaking, the domain of your server's PTR record can only be
judged relative to your (non-well-known) envelope sender domain if you
have specifically published policies, such as SPF, that recommend to
remote senders that they look for certain patterns in this data. It's
very, very unlikely that this Exchange site is doing such processing
in an unsolicited, custom form. It's more likely that they are
checking to see if your PTR has a corresponding A record pointing back
to your server's IP, but I doubt they're even doing that increasingly
common check; I'd bet the recipient address just plain is not known to
that server, as stated.
--Sandy
------------------------------------
Sanford Whiteman, Chief Technologist
Broadleaf Systems, a division of
Cypress Integrated Systems, Inc.
e-mail: [EMAIL PROTECTED]
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