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Exchange 2003 - Multiple SMTP Connectors

Posted on 2009-05-20
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Last Modified: 2012-08-14
Hello! We currently have one SMTP Connector (this is Exchange 2003 Enterprise, SP2) that forwards everything (*) to an external SmartHost, Cost 1. The SmartHost is an external mail filtering company. This works fine now...internal email stays internal, and all outbound goes to the filtering service.

I am adding a second SMTP Connector as we have one customer that requires TLS encrypted emails.I know I have to create a second SMTP Connector, add the customer domain to it (i.e., companydomain.com), check the TLS box, and also forward it off the same email filtering company.

My question is around the cost...do I need to change the default cost of 1 on either connector? I read somewhere you should, but I read other articles that say Exchange automatically looks for the Connector that best suits and just uses that (so keep them both at 1).

So this is how it will look:
Connector 1: Forwards outbound to filtering company, *, Cost 1
Connector 2: Forwards outbound to filtering company, comanydomain.com, Cost 1

Any ideas are appreciated. Thanks!
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Question by:exadmin2006
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flyingsky earned 250 total points
ID: 24434923
you can leave both at 1, this is what MS said
"The address space defines the mail addresses or domains for the e-mail messages that you want to route through a connector. For example, an address space of * (asterisk) encompasses all external domainsthis connector is used to route all external e-mail. If you created a second connector with an address space of *.net, Exchange would route all mail sent to a domain with a .net extension through the second connector. This action occurs because Exchange selects the connector that has the most similar address space. This setting is configured on the Address tab of the SMTP connector's properties. "
http://technet.microsoft.com/en-us/library/aa997032(EXCHG.65).aspx
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