Forwarding or relaying incoming e-mail. (Exch. 5.5)

[MarksSE]

I need help on figuring out how to Forward or relay certain incoming e-mail, just to one e-mail address, through my Exchange Server and onto a UNIX Sendmail server. Is this possible? THANKS!!!

-Mark

 

[zbnet]

You're a little unclear exactly what you're attempting. A CR is one way of redirecting incoming mail to an address outside Exchange. Alternatively you can look at the routing tab of the IMS and define a different domain or subdomain as external, and get Exchange to reroute the email for this to the other system.

 

[MarksSE]

What's a CR?

Normally mail comes to my Exchange Server in the format of username@domain_name.com. I want to be able to get e-mail with the format of username@machinename.domain_name.com to come in and it be forwarded/relayed to that UNIX server with the hostname machinename.domain_name.com.

Is this what they call a "sub-domain"?

Thanks again!

-Mark

 

[zbnet]

A CR is a Custom Recipient - an external address pointer in the Exchange directory. Reading your second post, I don't think you want this.

To do what you want, you can use the Routing tab of the IMS, it will work if you define the machinename.domain_name.com as a <relay? entry and if your DNS can resolve this name to a real IP address for the unix server.

This generally what is refered to as a sub-domain.

 

[MarksSE]

We are making progress now. I setup the routing as you described, created a DNS host record for the UNIX machine but used the IP address of my Exchange Server since the UNIX machine doesn't have an outside, publicly accessible IP address. Now I get Undeliverable messages back from the Exchange server saying 'Too Many Hops'. So now at least the Exchange server is getting the incoming e-mails, but for some reason they aren't getting through to the UNIX server. Do I have an endless loop created somewhere maybe, causing the 'too many hops' message?

-Mark

 

[zbnet]

Maybe you need a 'domain name' entry for this domain name instead of a <relay> entry - so long as your DNS had a host entry for the 'domain name' that resolves to the unix host, DNS should allow delivery of the mail to the host.

 

[MarksSE]

OK, I tried that, - and now it's stripping off the machinename from the domain.