[ILUG] SENDMAIL/EXCHANGE

[Conor Daly]

On Thu, Sep 14, 2000 at 06:39:56PM +0100 or so it is rumoured hereabouts, 
warren daly thought:
> Hello all,
> I would really appreciate any help on the following.  I have a redhat 6.1 machine running SENDMAIL.  It's receiving external email for my domain fine.  I have setup a M$ Exchange 5.5 machine on the
> same domain in a seperate department.  It is sending and receiving internal mail and sending external mail fine. But not receiving external mail for the users setup on it. ( it is monitoring port 25
> thought)
> How do I forward mail from Sendmail to the Exchange machine?
> Is it possible to forward single addresses or  Is it possible to forward all mail to this machine and retain it on the sendmail box?
> 
> I am wondering will SMART_HOST or MAIL_HUB options in Sendmail work??
> 

We use a similar setup at work.  A FreeBsd box with sendmail and an NT box
with M$ Exchange.  The FreeBsd box has a set of aliases for incoming mail.
If there is no match there, incoming mail goes to the Exchange server.  I
haven't worked out quite how that happens though there's no SMART_HOST
entry for the Exchange server on the sendmail box.  The sysadmin is going
to look into it later in the week so I may be able to tell you more.  

I'd imagine that setting up a set of aliases on your sendmail box and
setting the Exchange server as a SMART_HOST should do the trick nicely.
The sendmail box will deal with anything it has an alias for and will
forward anything else to the Exchange box.

-- 
Conor Daly <conor.daly at oceanfree.net>

Domestic Sysadmin :-)