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How Do I send/recieve through Exchange with a different domain

Posted on 2011-03-01
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Last Modified: 2012-06-22
I had this working in the past. Our server crashed and had to be rebuilt.
I had alternate email accounts for my users through Exchange using a different domain name- built into SBS2003

Example (made up domain name):

My current business domain: ABCDEFGHIJKL.COM
I changed the MX/a records to point to my exchange server with the registra I purchased the domain from.

The owner realized that it's hard to communicate the above domain name for his companies emails - Joeexample@ABCDEFGHIJKL.COM  to his clients.
He purchases another domain name: ABC.COM from a different registra.
I connected to that registra an pointed the MX/a records to my server@ABCDEFGHIJKL.COM and our static IP

I went into the Server manager within SBS 2003
I opened a the user properties and choose the E-Mail Addresses tab
I created a new SMTP account using the newly purchased domain name
Example: Chris@ABC.COM

I get this message when I attempt to send an email:

Your message cannot be delivered to the following recipients:

  Recipient address: Chris@ABC.com
  Reason: Remote SMTP server has rejected address
  Diagnostic code: smtp;550 5.7.1 Unable to relay for Chris@ABC.com
  Remote system: dns;server@ABCDEFGHIJKL.COM (TCP|xxx.xxx.x.xxx|40174|xx.xx.xx.xxx|25)

What am I doing wrong? What did I forget to do?
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Question by:GeeMoon
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9 Comments
 
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Expert Comment

by:MichaelVH
ID: 35010812
In order for Exchange 2003 to accept new/other email domains you have to create a recipient-policy with that email-address in it.

Can you confirm that you created one?
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Author Comment

by:GeeMoon
ID: 35010994
I have not. Will this affect my original business domain accounts????
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Expert Comment

by:MichaelVH
ID: 35011030
GeeMoon,

that really depends on how you create your policy.
Each policy has a filter. With that filter you can filter down to what users you want to give that new email-domain.

If you do that correctly, that won't have an impact on the other domains.

For more information on creating recipient policies, look here:
http://technet.microsoft.com/en-us/library/aa998932(EXCHG.65).aspx
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Author Comment

by:GeeMoon
ID: 35011177
I appreciate the quick response. Thank you.

Before I start reading through the provided material:

I just want to make sure I am clear to you in what I am trying to accomplish.
A user will receive their normal corporate business emails as usual - no disruption. They would also be able to receive emails from an alternate email address with a different domain name.

I am obviously using the default Exchange - SBS 2003 policy - one I didn't personally have a hand in.

Is this possible?
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Accepted Solution

by:
MichaelVH earned 500 total points
ID: 35011201
GeeMoon, that is possible, YES :-)

If I'm correct you can even just add the new domain to the default policy (just make sure that you don't set the new domain as default) and you're off :-)
Basically, you add the new domain als an alternative domain to the default policy.

Grts,

Michael
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Author Comment

by:GeeMoon
ID: 35011445
Thanks MichaelVH:

Is there any kind of delay in the update of the policy? Will I need to push the policy in any way or will I see immediate result via a test email?
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Expert Comment

by:MichaelVH
ID: 35011471
If I'm correct it will ask you to update the recipients right away or not at the end. You can apply them immediatly.

Michael
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Author Comment

by:GeeMoon
ID: 35012809
Thank You MichaelVH:

I was able to add the new domain to the default policy. It did ask to apply the changes to the policy while I was editing. My email tests were successful.

Thank You!
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Author Closing Comment

by:GeeMoon
ID: 35012823
MichaelVH was right on the money. Much thanks to him
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