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How do I setup a completely seperate SMTP domain in Exchange 2003?

I am currently hosting domain 123.com. I want to add abc.com but I want it to use a seperate ip address. I can currently have the recipient policy setup and two seperate virtual smtp servers. I can receive email fine but when I send email it sends off the first smtp server. Is there a way to specify which smtp domain relays off which smtp server?
1 Solution
Ehab SalemIT ManagerCommented:
In routing groups/connectors/ you must have 2 internet smtp connectors, one for each virtual server.
While you can have two different IP addresses for inbound email, you cannot use two different IP addresses for outbound email. Exchange doesn't route email based on the sender, only the recipient.

What I usually suggest for multiple domain sites is that the same information is used for both domains - so the same host in the MX records, which means they are using the same reverse DNS and same SMTP banner.

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