Import, export, or remove a certificate for a contact

If you have a person's certificate in Outlook, you can send that person an encrypted message.

Do any of the following:

Import a certificate

1. At the bottom of the navigation pane, click Contacts  .

2. Open the contact that you want, and then click the Certificates tab.

3. Click , locate the certificate, and then click Open.

   Note: To set the default certificate for a contact, select the certificate, click , and then click Set as Default.

Export a certificate

Certificates can be exported in three formats: DER encoded X.509, PEM (Base-64 encoded X.509), and PKCS #7. The DER encoded X.509 format is the most common, but you might want to ask what format your recipient requires.

1. At the bottom of the navigation pane, click Contacts  .

2. Open the contact that you want, and then click the Certificates tab.

3. Select the certificate, click , and then click Export.

   To set the format of the certificate, make a selection on the Format menu.

Delete a certificate

1. At the bottom of the navigation pane, click Contacts  .

2. Open the contact that you want, and then click the Certificates tab.

3. Select the certificate, and then click .

See also

Add a sender's certificate to the Address Book

Send a digitally signed or encrypted message

About digital signing, encryption, and smart cards