Microsoft Outlook 2007 allows users to digitally sign emails for authentication and integrity. To set this up, users must select Trust Center from the Tools menu, then choose Email Security and Settings to select a signing certificate. From there, users can either sign all outgoing messages by checking the appropriate box, or sign individual emails by clicking the envelope icon on the toolbar.

1. Digitally Signing
Microsoft® Outlook® 2007

2. Microsoft Outlook includes tools for sending
and receiving digitally signed emails.

3. Before sending signed emails, you must
configure Outlook to associate your
certificate with your email account.

4. To begin, select Trust Center from the
Tools menu.

5. Select E-mail Security from the left-side panel.

6. Click Settings.

7. Click Choose to select a signing certificate.

8. Select the certificate you want to use for signing
and click OK.

9. To sign all email messages, check Add digital
signature to outgoing messages on the E-mail
Security section of the Trust Center.

10. To sign a specific email message, select the
envelope icon on the Outlook toolbar.

11. Thank you!
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