How Do I modify The Default Email Address Policy Once I have migrated to Exchange 2010 from Exchange 2003

Below is the error I get when trying to delete an accepted domain
Microsoft Exchange Error
Action 'Remove' could not be performed on object ''.
Can't remove the domain '' because it's referenced in an e-mail address policy by the proxy address template ''.

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LealITConnect With a Mentor Author Commented:
Step 1 :-
follow link (provided by Demazter,)
Step 2 :-
Run: adsiedit.msc from Start – Run
now browse to the following:
•      Configuration
•      CN=Configuration,DC=<Domain Name>,DC=<Root>
•      CN=Services
•      CN=Microsoft Exchange
•      CN=<Exchange Organization>
•      CN=Recipient Policies
Now right click CN=Default Policy and select properties.
Scroll down to the attribute named GatewayProxy, select it and click edit. Remove the offending domain ( click ok.
Give it a while for active directory to replicate across all domain controllers (or force replication).

Step 3:-
Go to the Exchange Management Console – Microsoft Exchange – Organisation configuration – Hub Transport – Accepted Domains

Step 4:-
Delete “@domain” domain that you want to delete.

Voila you are good to go.

After doing this I am wondering if it is not best to delete all the domains and recreate a policy for each one.
Glen KnightConnect With a Mentor Commented:
Unfortunately the default policy cannot be modified (for some reason the Exchange team thought this was a good idea)

You will have to create a new policy and apply that to all users.
LealITAuthor Commented:
Currently I accept 4 different Domains and i need to cancel one "domainX"as it is no longer hosted by us. users on domainX no longer receive mail from user on our exchange server because it is on the default address policy .
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Glen KnightCommented:
Can you try upgrading the policy running the command detailed here in the Exchange Management Shell, as it's a migration this could be causing the problem.
LealITAuthor Commented:
I did try that and i was able to at least edit the the policy however i still got an error.

I also found an article which suggest that i delete
LealITAuthor Commented:
I am trying to assign demazter 250 points for coming up with some of the answer and the rest to me and i get the error "Each point split must be at least 20 points"
Glen KnightCommented:
You cannot assign points to yourself so the point box next to your answer should be empty.  What you don't assign will be refunded to yourself.

(I think - I don't ask many questions)
Glen KnightCommented:
Have you closed this properly?
LealITAuthor Commented:
case can be closed how on earth do  i give points to Demazter for helping?

I'm posting an objection to the currently pending close request.

There are some bugs in the closing system that are currently causing problems for some Members trying to close questions using the Accept and Awards Points option.

I will re-close this, awarding 250 points to demazter as requested here:

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