sendmail relay

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From - Wed Oct 18 12:04:47 2000
Path: news.randori.com!newsfeeder.randori.com!europa.netcrusader.net!210.147.7.1!newsfeed.mesh.ad.jp!sjc-peer.news.verio.net!news.verio.net!iad-read.news.verio.net.POSTED!nosuchsite!bill
Newsgroups: comp.unix.sco.misc
From: bill@wjv.com (Bill Vermillion)
Subject: Re: Sendmail and relaying
Reply-To: bv@wjv.com
Organization: W.J.Vermillion - Orlando / Winter Park
Message-ID: <G2Mqns.sJs@wjv.com> 
References: <sur3pjh0gv1a20@corp.supernews.com> 
Lines: 32
Date: Wed, 18 Oct 2000 14:23:52 GMT
NNTP-Posting-Host: 157.238.210.203
X-Complaints-To: abuse@verio.net
X-Trace: iad-read.news.verio.net 971880841 157.238.210.203 (Wed, 18 Oct 2000 14:54:01 GMT)
NNTP-Posting-Date: Wed, 18 Oct 2000 14:54:01 GMT
Xref: news.randori.com comp.unix.sco.misc:67418
X-Mozilla-Status: 0000
X-Mozilla-Status2: 00000000

In article <sur3pjh0gv1a20@corp.supernews.com>, Brian <moncho@inyc.com> wrote:
>OSR 5.0.6 with Sendmail 8.9.3

>Trying to do the following;

>Send internet email from b.chu.com to a.chu.com through dial-up PPP
>account at isp.com to any mail account on the internet.

Looking at your output messages sendmail is doing exactly as it
supposed to be doing.  By sending mail from b.chu.com through
a.chu.com to isp.com you are trying to use a.chu.com as a relay.

By default relaying is denied in 8.9.3.   But the b.chu.com
in your access list - this is assuming you have a K pointer in
sendmail.cf to an access database.  You put in the domains
to relay and the ones to reject.

>Internal network
>a.chu.com - 10.1.1.2 - This is the relay that calls the ISP.
>    Sendmail is configured to relay any non-local messages to
>    isp.com

But is is NOT configured to act as a relay point between two other
mailers.

Alternatively you could have your MX records for you domain
all just point to a.chu.com and not run sendmail on the other
machine.

-- 
Bill Vermillion -   bv @ wjv . com

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