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Date:      Sun, 8 Sep 2002 10:27:47 +0200
From:      Ruben de Groot <fbsd-q@bzerk.org>
To:        Abc Xyz <abc@anchorageinternet.org>
Cc:        freebsd-questions <questions@FreeBSD.ORG>
Subject:   Re: private IP mail mail relaying
Message-ID:  <20020908082747.GA63523@ei.bzerk.org>
In-Reply-To: <200209080436.g884aM4a009898@anchorageinternet.org>
References:  <200209080436.g884aM4a009898@anchorageinternet.org>

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On Sun, Sep 08, 2002 at 04:36:22AM +0000, Abc Xyz typed:
> > have your gateway relay the mail from the internal network IP.
> > 
> > -Adam
> 
> can anyone provide more details on what is meant here?
> what to do exactly?  or where to look for what to do?
> i can't extract enough detail from the answer to
> proceed in any way with that information.
> 
> i read a bit about relaying at sendmail.org,
> but it's not exactly a small nor simple subject,
> and the only way i can make sense of the answer
> above is that it suggests configuring a private IP
> MUA to use the gateways MTA - which is not a solution
> as i stated below.  but i just can't tell, it's too terse.
> 
> what specifically needs to be done with sendmail to make
> it request another sendmail daemon on a gateway to act
> as a "relay" - if this is possible?

define(`SMART_HOST',`your.gateway.com')

> 
> thank you
> 
> > >> (09.07.2002 @ 0325 PST): Abc Xyz said, in 1.4K: <<
> > > this is a problem plaguing me for years - 3 or so.
> > > i am on a network with a private IP - an ethernet
> > > with a freebsd gateway using ppp -ddial -nat.
> > > it is important that the private IP MTA be used so
> > > mail logs stay on the corresponding machines from
> > > which they are sent and also because the MUA relies
> > > on a local MTA to function.
> > > 
> > > i thought i found a solution by editing sendmail.cf
> > > as follows:
> > > 
> > > DjMYGATEWAYSHOSTNAME.ORG
> > > 
> > > this did work for mailing a FBSD maillist,
> > > forcing sendmail to provide the gateway as
> > > the origin of the mail, but then i realized
> > > that it crashed internal network mail.
> > > 
> > > for example, with such a sendmail.cf, if i am
> > > on a machine with a private IP behind the gateway,
> > > and i mail user@MYGATEWAYSHOSTNAME.ORG, sendmail
> > > looks for "user" on my own machine, instead of
> > > the gateway.
> > > 
> > > i am sure i am not the only one with this problem,
> > > ie, using sendmail from a machine on a private IP network
> > > behind a gateway.  i think it's reasonable to imagine that
> > > most users using FBSD as a gateway have such a setup, at
> > > home or at work.
> > > 
> > > what is the proper solution to this problem?
> > > i have attempted to find out over the years,
> > > but have never recieved a simple and direct
> > > solution/answer.
> 
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