1. Start Microsoft Windows Mail/Outlook Express.

2. Click on File > New > Mail Message or click on New Message in the Message menu to create a blank message.

3. Insert the e-mail address of the intended recipient into the To field.

4. Add your text to the Subject and Body areas of the message window.

5. Click on Tools > Digitally sign or on the Digitally sign message icon to request that the message is digitally signed. The icon corresponding to the message has a picture of an envelope with a red ribbon over it.
   Optional:
   If you also want to encrypt the message, select the "Encrypt message" icon in addition to the "Digitally sign message" icon.

6. Click on Send to send the signed message. If the message does not disappear from your Outbox, click on the Send and Receive button to manually send the message to your outbound e-mail server.

1. Start Microsoft Outlook 2007.

2. Click on File > New > Mail Message or click on the New button to create a blank message.

3. Insert the e-mail address of the intended recipient into the To field.

4. Add your text to the Subject field and to the Body of the message.

5. Click on the Options tab. In the Options pane, click on the arrow in the right side of More Options tab to open the Message Options dialog box.

6. Click on Security Settings ... in the Message Options dialog. The Security Properties dialog is displayed.

7. Select the option Add digital signature to this message.

8. Click on Change Settings ... to display the Change Security Settings dialog. This allows you to change your security settings (i.e. your certificate).

9. Close the Security Properties dialog by clicking on the OK button.

10. Close the Message Options dialog by clicking on the Close button.

11. Send your signed e-mail message by clicking on the Send button in the message window.

1. Start Microsoft Outlook 2003.

2. Click on File > New > Mail Message or click on the New Mail Message button to create a blank message.

3. Insert the e-mail address of the intended recipient into the To field.

4. Add your text to the Subject field and to the Body of the message.

5. Click on the Options ... button. The Message Options dialog appears.

6. Click on Security Settings ... in the Message Options dialog the Security Properties dialog appears.

7. Select the option Add digital signature to this message.

8. Click on Change Settings ... to get the Change Security Settings dialog. This allows you to change your security settings (i.e., your certificate).

9. Close the Security Properties dialog by clicking on the OK button.

10. Close the Message Options dialog by clicking on the Close button in the Message Options dialog.

11. Send your signed e-mail message by clicking on the Send button in the message window.

If your Basic User Key is not already cached, it will be requested now. If the certificate you use for the signature has strong private key protection, you will be requested to enter the pin for certificate usage.

1. Start Microsoft Outlook XP.

2. Click on File > New > Mail Message or click on the New Mail Message button to create a blank message.

3. Insert the e-mail address of the intended recipient into the To field.

4. Add your text to the Subject field and to the Body of the message.

5. Click on the Options ... button. The Message Options dialog appears.

6. Click on Security Settings ... in the Message Options dialog the Security Properties dialog appears.

7. Select the option Add digital signature to this message.

8. Click on Change Settings ... to get the Change Security Settings dialog. This allows you to change your security settings (i.e., your certificate).

9. Close the Security Properties dialog by clicking on the OK button.

10. Close the Message Options dialog by clicking on the Close button in the Message Options dialog.

11. Send your signed e-mail message by clicking on the Send button in the message window.

1. Start Microsoft Outlook 2000.

2. Click on File > New > Mail Message or on the New Mail Message button to create a blank message.

3. Insert the e-mail address of the intended recipient into the To field.

4. Add your text to the Subject field and to the Body of the message.

5. Click on the Options button or click on Options in the View menu. The Message Options dialog box appears.

6. Click on the Add digital signature to outgoing message option.

7. Click on Close to close the Message Options dialog box, and then click on the Send button to send the signed message (e-mail).