Topic Last Modified: 2008-10-13

The Microsoft Exchange Analyzer Tool queries the Active Directory directory service to determine the value for the gatewayProxy attribute of each e-mail address policy object. The gatewayProxy attribute represents a valid address space for the e-mail address policy.

The Exchange Analyzer then queries the Active Directory directory service for all objects with an object class of msExchAcceptedDomain. Objects with an object class of msExchAcceptedDomain represent an accepted domain for the Exchange organization.

E-mail address policies generate the primary and secondary e-mail addresses for your recipients (which include users, contacts, and groups) so they can receive and send e-mail. By default, Exchange contains an e-mail address policy that specifies the recipient's alias as the local part of the e-mail address and uses the default accepted domain. The local part of an e-mail address is the name that appears before the at sign (@).

An accepted domain is any Simple Mail Transfer Protocol (SMTP) namespace for which an Exchange organization sends or receives e-mail. Accepted domains include those domains for which the Exchange organization is authoritative. An Exchange organization is authoritative when it handles mail delivery for recipients in the accepted domain. Accepted domains also include domains for which the Exchange organization receives mail and then relays it to an e-mail server that is outside the Active Directory forest for delivery to the recipient.

If the Exchange Analyzer determines that the domain used for the gatewayProxy attribute of an e-mail address policy object is not an accepted domain for the Exchange organization, the Exchange Analyzer displays a warning.

This warning means that e-mail addressed to recipients whose e-mail addresses were generated by the e-mail address policy using the non-accepted domain may not be delivered.

To address this warning, edit the e-mail address policy to reflect an existing accepted domain or add the domain as an accepted domain for the Exchange organization.

To edit the e-mail address policy

1. Follow the guidance on changing the accepted domain for the e-mail address in the "How to Edit an E-Mail Address Policy" (http://go.microsoft.com/fwlink/?LinkId=125475) topic of the Exchange Server 2007 product documentation.

To add a new accepted domain

1. Follow the guidance on creating a new accepted domain in the "How to Create Accepted Domains" (http://go.microsoft.com/fwlink/?LinkId=125476) topic of the Exchange Server 2007 product documentation.

2. Add the accepted domain to the e-mail address policy by following the guidance of the "To edit the e-mail address policy" procedure earlier in this topic.

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