Add an MX record for every host that points to your main mail server.
Also, you'll want to create a sendmail.cf file for your mail server
specifying it as a mail hub and then sendmail.cf files for your hosts
specifying them as null clients. The "bat book" (O'Reilly's Sendmail book)
will come in handy for such a task.

Gabe

On Wed, Aug 16, 2000 at 08:29:59AM -0500, Mike Glaser wrote:
> I would guess that the solution to this problem is quite simple, but I have not 
> been able to figure it out yet. At the risk of embarrassing myself, here goes...
> 
> I want to forward any e-mail for root (or any local users) on my small collection 
> of linux servers to one of the company's two main Internet connected mail 
> servers.
> 
> The linux servers are all on different LAN's and they are all running sendmail 
> on a RedHat 6.2 system. I would like the messages forwarded to the main mail 
> server that is running on Windows 98 and connected to the Internet with a 
> modem. I have a single (very simple) DNS server running also. I mention this 
> because I guess that an 'MX' record may come into play here.
> 
> Question: must I place .forward files into each account I want forwarded or is 
> there some way around this with DNS and MX records? Can't I just send mail 
> out to anywhere somehow? My knowledge of these things is quite basic, but I 
> am trying to learn.
> 
> =====
> 
> I started by placing a .forward file in a local account we will call 'joe'.
> The  .forward file contained one line that read 'jblow at mail.corp.com' where 
> 'mail.corp.com' is the hostname of the mail server I want messages to end up 
> at. The actual e-mail account on that mail server would be 'jblow at corp.com'. I 
> can do a ping or nslookup on the linux server for mail.corp.com and get a reply 
> from the mail server so I think DNS is working ok (there are no MX records). 
> When I try to forward out a message it doesn't work though.
> 
> I am trying to set all of this up so that I only need one e-mail box to check, or 
> so that certain alerts can be mailed to the appropriate people, etc.
> 
> Thanks in advance,
> Mike Glaser
> 
> 
> 
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-- 
--------------------------------------------------------------------------------
Gabe Turner				       |  	   X-President,
UNIX Systems Administrator,		       | Assoc. for Computing Machinery
U of M Supercomputing Institute for	       |    Univerisity of Minnesota
Digital Simulation and Advanced Computation    |       dopp at acm.cs.umn.edu

"Hey Guedo!  It's all so clear to me now.  I am the keeper of the
 cheese, and you're the lemon merchant.  Get it?"
					- Ren Hoek in "In the Army"
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