To add a contact's digital ID to your address book

To send someone encrypted mail, you must have the recipient's digital ID, and that ID must be associated with their name in your address book. Outlook Express automatically adds digital IDs to your address book when you receive digitally signed mail. If you have turned off this option, you will need to manually add a contact's digital ID.

1. Open the digitally signed message.
2. On the File menu, click Properties.

3. Click the Security tab, and then click Add digital ID to the address book.

   When a contact has a digital ID, a red ribbon is added to their card in your address book.

To add a digital ID to your address book from another source

1. In the Address Book, create a new entry for the contact, or double-click an existing one in the Address Book list.

2. On the Digital IDs tab, click Import.

3. Find the digital ID file, and then click Open.

Notes

• To automatically add a contact's digital ID to your address book, on the Tools menu, click Options. Then on the Security tab, click the Advanced button, and select the Add senders' certificates to my address book check box.
• You can also get someone's digital ID by downloading it from a certification authority's Web site. (See the Microsoft Internet Explorer Digital ID site for links to certification authorities.)