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Configuration of common E-mail Clients for Secure E-Mail Communication

Instructions for Outlook Users:

(Source: http://office.microsoft.com/en-us/outlook-help/get-a-digital-id-HP001230537.aspx)

Specify the digital ID to use

  1. On the Tools menu, click Trust Center, and then click E-mail Security.
  2. Under Encrypted e-mail, click Settings.

Note   If you have a digital ID, the settings to use the digital ID are automatically configured for you.
If you want to use a different digital ID, specify the digital ID by following the remaining steps in this procedure.

  1. At the bottom of the Security Setting Preferences section, click New.
  2. In the Security Settings Name box, enter a name.
  3. In the Cryptography Format list, click S/MIME. Depending on your certificate type, you can choose Exchange Security instead.
  4. Next to the Signing Certificate box, click Choose, and then select a certificate that is valid for digital signing.

 Note   To learn if the certificate is intended for digital signing and encryption, on the Select Certificate dialog box, click View Certificate. An appropriate certificate for cryptographic messaging (such as digital signing) might say, for example, "Protects e-mail messages."

  1. Next to the Encryption Certificate box, click Choose, and then select a certificate that is valid for encryption.
  2. Select the Send these certificates with signed messages check box unless you will be sending and receiving signed messages only within your organization.

 Note   The settings that you choose become the default whenever you send cryptographic messages. If you do not want these settings to be used by default for all your cryptographic messages, clear the Default Security Setting for all cryptographic messages check box.


Instructions for Lotus Notes Users:

Exporting your Certificate/Key Pair from Microsoft Internet Explorer: 1. From the menu bar, click on Tools > Internet Options.
2. Click on the Content tab.
3. Click on the Certificates button.
4. In the Personal tab, select the certificate you wish to export.
5. Click on Export.
6. Click on Next.
7. Select the Yes, export the Private Key option.
8. Click on Next.
9. Enter the password to protect the certificate and private key being exported. Enter this password again to confirm then click Next.
10. Browse to the directory where you wish to store the file and select a file name.
11. Click Save and then Next.
12. Click on Finish.
13. You should see the message "The export was successful."
14. Click OK.

Import of Internet-Certificate to Lotus Notes User-ID
After the application process, the certificate is stored on the certificate store on your computer.
To get Lotus Notes to work with your certificate, the certificate must be exported from the store and imported
to your User-ID in Notes. Please follow the steps below:

Enabling the certificate in Lotus Notes:
1. Choose File - Tools - User ID.
2. Go to the Certificates panel of the User ID dialog box.
3. Scroll down in the Certificates Issued By list until you see the new certificates you just imported.
4. Select your public key certificate (not the certificate authority certificates). When you select the right certificate, your e-mail address will appear in the Certificates Issued To list.
5. Make sure that the "This is your default signing certificate" checkbox is selected.
6. Click OK.

Using the digital ID as you send and receive e-mail from Notes: 1. When composing an e-mail message, click the Delivery Options action button to open the Delivery Options dialog box.
2. On the Basics tab, select Sign (to authenticate the message) or Encrypt
(to make the message secret), or both.
3. Click OK.


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