preventing relay - sendmail 8.8.8

From: Paul N. Youngblood <youngbp_at_email.uah.edu>
Date: Mon, 13 Apr 1998 19:12:49 -0500 (CDT)

Hello system admins,

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: ???

   HACK(use_ip)
   HACK(check_rcpt4)

Or, should I use others instead?
Thanks for helping. I'll summarize.

Paul Youngblood
University of Alabama in Huntsville
email: youngbloodp_at_uah.edu
Received on Tue Apr 14 1998 - 02:10:35 NZST

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