[98193] in RedHat Linux List
Sendmail problem ?
daemon@ATHENA.MIT.EDU (Mike A. Lewis, CNE)
Sat Nov 7 08:42:23 1998
From: "Mike A. Lewis, CNE" <cajun@cajuninc.com>
To: "'redhat-list@redhat.com'" <redhat-list@redhat.com>
Date: Sat, 7 Nov 1998 05:42:00 -0800
Resent-From: redhat-list@redhat.com
Reply-To: redhat-list@redhat.com
This will be a fairly long message in order to explain it completely :-(
What I'm trying to setup is a mail relay inside a DMZ. The configuration
looks something like this:
ISP --------------------- firewall ---------------------- Mail-rly
|
|
|
|
Mailhost.company.com
What is happening is:
1. Mail can be sent from Mail-rly to addresses on the Internet.
2. Mail from Internet is sent (and queued) at Mail-rly (but not
delivered to mailhost.company.com)
3. Mail sent from Mailhost.company.com (status=not certain where it
goes, but it is not delivered)
I believe I have a mail loop between Mail-rly and my ISP. This COULD be
because of rules in the firewall, but I'm not totally certain that I have
the /etc/sendmail.cf file setup correctly.
Here's the question: _ASSUMING THERE IS NOT A RULE PROBLEM ON THE
FIREWALL_, here are the portions of /etc/sendmail.cf that I have changed.
Are these correct to do what I'm trying to accomplish ?
TIA,
Mike
Portions of /etc/sendmail.cf
Cwlocalhost
# file containing names of hosts for which we receive email
Fw/etc/sendmail.cw (**************** this file does not
exist ******************)
# "Smart" relay host (may be null)
DS
# who I send unqualified names to (null means deliver locally)
DRmailhost.company.com
# who gets all local email traffic ($R has precedence for unqualified names)
DHmailhost.company.com
# who I masquerade as (null for no masquerading) (see also $=M)
DM
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