You need to use the mailertables located in /etc/mail for routing it. Look
at http://www.sendmail.org/m4/mailertables.html
for an example.
----- Original Message -----
From: Gerald Mattison <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, July 25, 2000 12:42 AM
Subject: SMTP mail relay from DMZ
> Can some one help with a problem I am having with SMTP
> mail relay using Sonicwall and Linux server in a DMZ.
>
> Thanks.
>
> Gerald
>
> Configuration
> -------------
>
> WAN ||
> ----------------------
> gate.abc.com | SonicWall |
> ----------------------
> LAN | | DMZ
> ---- ---
> exc.abc.com |A| |B| mail.abc.com
> ---- ---
>
> SonicWall is using NATting for the LAN side.
> With the SonicWall model we have, all servers
> in DMZ need a routable IP address.
>
> A (exc.abc.com) is a Windows NT 4.0 running MS
> Exchange server. Domain is ABC. All userids
> within the Exchange Server are configured as
> [EMAIL PROTECTED]
>
> B (mail.abc.com) is a Red Hat Linux Server, running
> SMTP. It has a routable internet address, is within
> the same subnet as the gate.abc.com, and use the
> same router/WAN gateway address.
>
>
> Problem's experiencing
> ----------------------
> Internet mail is being received by the mail.abc.com
> without any problem. However, I cannot figure out
> how to relay the mail from the Linux server to the
> Exchange Server on the LAN?
>
> Questions
> ---------
> 1) Can mail be routed from a server with a
> routable internet address to a server inside
> a LAN?
>
> 2) If it cannot be routed, is the next best
> approach to use something like POP3?
>
>
>
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