Preventing relay - sendmail (corrected posting)

From: Paul N. Youngblood <youngbp_at_email.uah.edu>
Date: Mon, 13 Apr 1998 19:40:04 -0500 (CDT)

Hello again on this one,

Let me add more specifics to my original posted question to
be a little clearer...

Currently, I've got sendmail 8.8.8 running on DU 4.0B.
Also, I do not run NIS. I want to prevent anyone from using
my AlphaServer as a mail relay, except for users within my
domain. For example, if my server lives at 123.456.7.899,
and I want to prevent anyone outside of 123.456 from relaying
email thru my server, are the following two hacks in my .mc file
ALL that m4 requires to accomplish this: (I understand that these
lines reference properly created data files, etc, but are these
THE two critical lines required in the .mc file) ???

   HACK(use_ip)
   HACK(check_rcpt4)

I've checked out www.sendmail.org, anti-spam sites, etc, and
I'm still not completely clear about this. I think this will
do the job, but would like some confirmation.
Thanks for helping. I'll summarize.

Paul Youngblood
University of Alabama in Huntsville
email: youngbloodp_at_uah.edu
Received on Tue Apr 14 1998 - 02:37:34 NZST

This archive was generated by hypermail 2.4.0 : Wed Nov 08 2023 - 11:53:37 NZDT