Relaying Question

[BLK330]

Hi guys,

I have a simple relaying question that I would appreciate some help with.

I have a domain who's MX records will point to say:

mail.server1.com

Server1 is an exchange 2003 box, it will not actually host the mailboxes for the domain in question, I simply want it to relay messages onto another exchange server "mail.server2.com" as it receives them.

Worth noting that the two servers are in completely independant AD forrests.


Mail.server2.com may also want to route its outbound mail via server1 before it hits the web.

This is all for filtering purposes.

Can it be done? .. If so could someone just put it in brief bullet points for what needs setting up on server1.

Thanks

 

[Zelandakh]

Yup. Easily, though its not a clever way of doing things.

You'd have an SMTP virtual server on Server1 set to pass all email to Server2. You can tie it down so accept emails only from your firewall and Server2 if you want.

On Server2 you have an SMTP virtual server set to only receive email from Server1.

AD forests is fine as long as they can IP to each other somehow.

Why you are doing it this way is another matter - a straight SMTP relay in Windows would be easier and more cost effective.

 

[BLK330]

Thanks for that.

I maybe should have given a litle more info .... Server 1 handles mail for a handful of MY domains, it needs to keep hold of mail for these domains and not pass it thru any further connectors / routes.

However if server1 receives mail that has been sent to an address that matches my FRIENDS domain say *@friendsdomain.com, I need it to then forward onto server2 (his server)

I know it sounds daft, and believe me its not the way I would like to do it, but unfortunately I have little choice. In an ideal world his MX records would just point straight to his server, however we want to share the user licenses of an Internet level spam filtering service. They will simply push the mail for ALL filtered domains thru to my IP, its then upto me to route my friends messages thru to his own server.

Thx

 

[Zelandakh]

ok, then I stand corrected - it is a valid scenario.