How to add a new domain to Exchange 2003

Akio63
Akio63 used Ask the Experts™
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We will be changing our domain name but want to keep our old domain in Exchange 2003.  This way any email destined for the old domain name will be delivered.  We have changed it with DNS and I have added the domain to the Default Policies under Recipient Policies.  

I have tested with several users and made the new domain their primary and it is working correctly as planned.  I have only changed this on about 5 out of 267 users.  We have one external domain (.net) and one local (.local).  We only have one Exchange server running 2003.  

How can I add the new domain to the other 262 users and service accounts as well as make the new domain the primary for everyone?  Also keep in mind that we would like to keep the old email domain too.  
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Pete LongTechnical Consultant

Commented:
The default policy will do this for you? it will aplly to all users who DONT have the "apply policy" box ticked on their user object in active directory
open a random user in ad users and computers > email addresses tab > is the policy box ticked? if so the policy you changed will auto apply to this user
note this is DEFAULT normally you have to manually exempt a user from the policy :)

PeteNetLive
Pete LongTechnical Consultant

Commented:
Technical Consultant
Commented:
to force your policy do this


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Author

Commented:
Thank you Pete.  Yes all accounts have the Automatically update e-mail addresses based on recipient policy checkmark checked.  Everyone has thier email address with the old domain name.  This one is currently set as primary.  I want to give everyone the new email address with the new domain name and allow them to still receive email using the old domain name.  

In that case, I assume I will need to change the default policy and make the new domain the primary and leave the old domain as a secondary.  Then when I right click on the Default Policy and select All Tasks and Apply this policy now..., the policy will check to see if each user has the new domain and if not it will create the SMTP email address with the new domain name and make it the primary?  Is that correct?  

Author

Commented:
Thanks Pete.  We ended up using ADmodify.net to do the bulk changes in ADUC.  Your solution was also a viable one, but the boss ended up deciding to use ADmodify.net instead.  Thanks for your help.  

Pete LongTechnical Consultant

Commented:
No problem Thanq

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