You are correct. If your AS400 is your mail server and open to the web
for receiving email, then it is also your gateway. Now how to configure
you AS400 SMTP server to drop email to invalid addresses, that I cannot
answer. We only send application generated email from our as400 and
relay through our internal Mail Server. Which then sends to our gateway
that process business rules for attachments, and SS#, and other rules to
quarantine or encrypt outbound email. When we first setup the gateway,
it accepted all email to our domain and our internal server generated
and sent the NDR's. Good luck to you.
Christopher Bipes
Information Services Director
CrossCheck, Inc.
-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[
mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of johnking@xxxxxxx
Sent: Tuesday, May 22, 2007 2:19 PM
To: Midrange Systems Technical Discussion
Subject: RE: I5 smtp and spamcop
Rich: Many thanks, we're using *LIST - we fought that "open relay"
issue a
few years ago.
Chris: I'm picking my way through unfamiliar terminology here, but
we're a
very small shop and don't have a separate mail gateway. If I
understand
our config correctly, our i5 smtp server grabs anything that the
router
sends to that particular IP address. The email is immediately
accepted or
rejected depending on whether there is an SDD entry. I suppose that
means
that our gateway and internal server are the same thing? I think I
understand the scenario you are describing but don't think it applied
to
our case. Please correct me if I'm missing something.
Now just have to figure out the real problem. I suspect that our
domain is
listed as the 'reply to' address on some 'refinance your house'
email,
and some AOL'er is tagging our domain as spam.
midrange.com
