Does anyone know of a way to migrate recipient policies other than to delete them all, then re-create them all? Surely there has to be another solution that works. I've got 1000 users and 30policies, i can't imagine dealing with this with 100,000 users and 1000 policies. From MS help on the issue: Version: 8.0 Symbolic Name: MSG_AL_INVALID_PURPORTEDSEARCH_RP Message: The service can't work properly because Email Address Policy '%1' has an invalid filter rule (PurportedSearch). The error is '%2'. Use the Exchange Management Console to correct this problem. New users, contacts, and groups won't be fully provisioned until this is fixed. %3 Explanation This Error event indicates that the e-mail address policy specified in the event has an invalid filter rule. While this error exists, new users, contacts, and groups will not receive mail information. User Action To resolve this error, fix the filter rule. For more information, see How to Create an Address List By Using Recipient Filters.