How to Configure Outlook to Use a Digital Certificate


This topic explains how to configure Outlook 2003 to use a digital certificate for the purposes of setting up a PKI/Exchange test environment.

The computer account and domain names used in this procedure are based on the test environment described in Implementing an Exchange 2003-Based Message Security System in a Test Environment.

Before You Begin

At the console, log on to CONT-WK01 as a member of the Domain Users group.


To configure Outlook to use a digital certificate

  1. Click Start, point to All Programs, point to Microsoft Office, and then click Microsoft Office Outlook 2003.

  2. Click Tools, and then click Options.

  3. Click on the Security tab and click Settings.

  4. Outlook populates the Change Security Settings dialog box with default information. Click OK to accept the defaults.


    If a user has more than one digital certificate in the local computer store, you must specify which digital certificate you want Outlook to use. To specify the certificate, under Certificates and Algorithms, click both Choose buttons.

    Security settings in Outlook


  5. Click OK to close the Options dialog box.