How to Mail-Enable a POP3 User Account for the Coexistence of Exchange and Windows Server POP3 service using a single SMTP domain

This topic explains how to mail-enable a POP3 user account in Active Directory directory service and assign an external address that is the same as the mail domain on the server running Windows Server POP3 service. POP3 accounts are mail-enabled so that these users appear in the global address list (GAL), and both Exchange Server and POP3 users can view each other. This topic applies to configuring Exchange Server and Windows Server POP3 service to coexist by using a single SMTP mail domain.

Before You Begin

Before you perform the procedures in this topic, confirm the following conditions exist:

• You have read Scenarios for Coexistence of the POP3 Service in Exchange Server 2003 and Windows Server 2003.

• You have performed the steps in the following procedure:

  • How to Configure Exchange and Windows Server POP3 Service to Coexist Using a Single SMTP Mail Domain

Procedure

To mail-enable a POP3 user account

1. On your Exchange Server, click Start, point to All Programs, point to Microsoft Exchange, and then click Active Directory User and Computers.

2. Navigate to the container in which your users reside.

3. Right-click the first POP3 user account, and click Exchange Tasks.

4. In Exchange Task Wizard, click Establish E-mail Address.

   Available Tasks page in Exchange Task Wizard

   

5. Click Next.

6. On the Establish E-mail Address page, the external e-mail address shows the e-mail address that is assigned to your POP3 user, which should be the same as the mail domain on the server running the Windows Server POP3 service. In the example, it is pop.northwindtraders.com.

   Establish E-mail Address page in Exchange Task Wizard

   

7. Click Next, and then click Finish.

8. Repeat steps 2 through 7 for each POP3 user account.