Upgrade Custom Recipient Policies as part of Exchange 2003 to 2010 Migration

Question

Hello,
We have Exchange 2003 and Exchange 2010 in co-existence. I have migrated all Mailboxes to Exchange 2010. Now I want to upgrade Recipient Policies.
We have 1 Default Policy, which I know how to upgrade
Set-EmailAddressPolicy "Default Policy" -IncludedRecipients AllReipients.
But my I dont know how to do it for 2 other Custom Policies. I came to know about the conversion scripts (http://technet.microsoft.com/en-us/library/dd351283.aspx)
but not sure how to run. I mean simply run the script on Exchange 2010 server or any special parameters needs to be included.
I can let you know the custom policies if required.
Thanks,
Mihir

Answer 1

Hello Niko,
I have already gone through this article, but it states for the "Default Policy". For custom policy it says
"Warning: 
if you  happen to do this on Recipient Policies that have (advanced) LDAP queries, all custom filters can be reset to "mailnickname=*"
which can result significant email outages. You have to test all these changes in a dedicated lab environment to see how these changes will affect your Exchange environment!"
I want to know about Custom Receipient Policies, not the Address list.
Custom Policy 1
(&(&(& (mailnickname=*) (| (&(objectCategory=person)(objectClass=user)(!(homeMDB=*))(!(msExchHomeServerName=*)))(&(objectCategory=person)(objectClass=user)(|(homeMDB=*)(msExchHomeServerName=*)))(&(objectCategory=person)(objectClass=contact))(objectCategory=group)(objectCategory=publicFolder)(objectCategory=msExchDynamicDistributionList)
Custom Policy 2
(&(ou>="")(name=DOMAINNAME*))
Custom Policy 3
(&(mailNickname=*)(legacyExchangeDN=/O=NAME/OU=OURNAME/*))
So how to convert this custom policies.
Thanks,
Mihir