Mail Between Two Exchange Servers

Ok I have two domains and a exchange server for each domain. domain1.com can not send email to domain2.com.

Domian1.com
IP: 192.168.1.1 - 192.168.10.250
Subnet: 255.255.255.0

Domain2.com
IP: 192.168.52.1 - 192.168.10.250
Subnet: 255.255.255.0

Both of these servers are connected through a router.

I can telnet to each server from the other server. I can ping each from the other. Is there some sort of mail transport I have to setup?? Is there a way to tell exchange that if mail is going to *@domain1.com then go to this server rather then send it out through smtp or something like that?

Jason

LVL 3
jsuttorAsked:
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James MontgomeryCommented:
Hello jsuttor,

Smells like a dns/mx record issue...

Set up a smtp connector on each server pointing to their ip address:

http://www.amset.info/exchange/smtp-connector.asp

Regards,

JimboEfx
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jsuttorAuthor Commented:
I input the domain in the dns server pointing the mx record to the internal address.

Sorry I have Exchange 2007 not 2003... I just installed it about two weeks ago so still learning it and I am not familiar with setting up smtp connectors.

Jason
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James MontgomeryCommented:
You need to modify hub transport and add smtp connector for the dns space on each server:

http://msexchangeteam.com/archive/2006/11/17/431555.aspx
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jsuttorAuthor Commented:
not at work. I will give it a shot in the morning. I will let you know
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jsuttorAuthor Commented:
Nope did not work.

I added the transports on each end.... when I send a message from domain1.com to domain2.com..

I get 4.2.1 error...

Like it wont connect to the other server.

Jason
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James MontgomeryCommented:
If these two domains are sperated in terms of exchange orgs then you will need appropriately configured receive connectors so that authentication is not required.

http://exchangepedia.com/blog/2006/07/exchange-server-2007-internet-email.html

Also you said you could telnet between them - did you actually send an email manually or just verify port 25 open?

http://www.yuki-onna.co.uk/email/smtp.html
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