I Can't take out the extra Domain names on my Exchang Server

At one time I was using more than one domain name on my Exchange server
Now that Im not using it I cant figure out how to take out the extra domain name because of this every time I go to create a Exchange user it creates the extra domain names with the users name.
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tigermattConnect With a Mentor Commented:

You must remove them in the Recipient Policy in which they are defined. This can be found in Exchange System Manager > Recipients > Recipient Policies. Right-click on each recipient policy, click Properties and then the Email Addresses tab. You can remove the appropriate addresses from there.

Bear in mind that updating the recipient policy will not necessarily cause Exchange to remove the email addresses from objects which have already been created. To remove these email domains from your existing users, contacts and groups, follow the stweps detailed in http://support.microsoft.com/kb/318774.

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