To perform this procedure, the account you use must be delegated the following:

• Exchange Organization Administrator role
  

For more information about permissions, delegating roles, and the rights that are required to administer Microsoft Exchange Server 2007, see Permission Considerations.

Also, before you perform this procedure, be aware of the following:

• Before a Simple Mail Transfer Protocol (SMTP) address domain can be used in an e-mail address policy, you must configure an accepted domain. For information about configuring accepted domains, see Managing Accepted Domains.
  
• To use the RecipientFilter parameter to create a custom filter, you must specify a string for the filter. The Exchange Management Shell uses OPath for the filtering syntax. OPath is a querying language designed to query object data sources. For more information about the OPath filtering syntax, see Creating Filters in Recipient Commands.
  

Important:
If you use a recipient filter to create or edit an e-mail address policy, you cannot use the Exchange Management Console to edit the e-mail address policy. You must use the Set-EmailAddressPolicy in the Exchange Management Shell. For detailed syntax parameter information, see Set-EmailAddressPolicy.

To learn more about e-mail address policies, see Understanding E-Mail Address Policies.

For more information about managing e-mail address policies, see Managing E-Mail Address Policies.

For more information about accepted domains, see the following topics:

• Managing Accepted Domains
  
• How to Create Accepted Domains