Overview

Today I ran into an issue at a client where they were unable to edit their Default E-mail Address Policy in the Exchange 2007 Management Console after an unclean migration from an Exchange 2003 environment. It also appears that the client had been using Novell GroupWise sometime in the past and had migrated to Exchange 2003 prior to upgrading to Exchange 2007.

Issue

When trying to update the Default E-Mail Address Policy the following error was being generated:

Event Type: Error
Event Source: MSExchangeSA
Event Category: General
Event ID: 2027
Date: 13/08/2010
Time: 1:25:47 PM
User: N/A
Computer: -
Description:
Unable to generate the e-mail address. Unable to load address module 'C:\Program Files\Microsoft\Exchange Server\Mailbox\address\GWISE\AMD64\gwxpxgen.dll' for address type 'GWISE'. Error 0xc007007e.

Solution

The solution to the problem was to delete the legacy GWISE:Exchange.First Administrative Group.&m entry from the Default Policy using ADSI Edit.

Launch adsiedit.msc on the Exchange server or a Domain Controller.

Navigate to:

Configuration [DC Comptuer Name] -> CN=Configuration,DC=domain,DC=local -> CN=Services > CN=Microsoft Exchange -> CN=[Your Exchange Org Name] – CN=Recipient Policies

Open the Properties for CN=Default Policy. Look for the disabledGatewayProxy attribute and click Edit.

Select the GWISE:Exchange.First Administrative Group.&m and select Remove.

Once complete, edit the E-Mail Address Policy again and apply. It should now apply successfully!