Integrate certificate in Outlook

Instructions for: SMIME certificates

General information

Secure your e-communication by integrating personal S/MIME certificates. In this guide, you will learn step by step how to integrate your certificates to encrypt and digitally sign emails. By using S/MIME, you increase the confidentiality and authenticity of your messages, protect sensitive data and ensure the integrity of your communication.

 

Prerequisites
  • You have a valid user certificate
  • You are using Outlook version 2019 or higher

Step by step

Illustrated instructions

Outlook
Step 1: Importing the certificate
  1. Double-click on the certificate that you received from the provider "Gèant TCS"(see User certificates instructions)
  2. As soon as the"Certificate import wizard" opens, select the"Current user" option and click "Next"

In the next step, select the certificate file that you downloaded when you applied and click on "Next".

Step 2: Confirming the import
  • In the next step, enter the password that you entered at the time of application
  • Select the option"Include all extended properties", if not selected automatically

If you are asked for the certificate store, select the following option:
"Automatically select certificate store (based on certificate type)"

In the last step, click on"Finish" - the certificate should now be available under Windows.


Step 3: Opening the Outlook settings

Now open Outlook and go to the"File" tab and select the"Options" item

Step 4: Opening the Trust Center
  • Select the menu item"Trust Center" in the Outlook options
  • Select the"Trust Center settings" item
Step 5: Activating the signature
  • Go to"Email security" in the left-hand ribbon
  • If not set automatically, select the"Add digital signature to outgoing messages" option
  • Then click on"Settings" under"Encrypted e-mail messages"
Step 6: Selecting the certificate
  • Select the mail account in the security settings for which the certificate was created
  • Click on "Select" under"Signing certificate" if the certificate was not linked automatically
  • Click on "Select" under"Encryption certificate" if the certificate was not linked automatically
  • At the end, click on"Ok" to save the settings
Step 7: Applying the signature

If you are now composing an email, you can click on "Sign" under "Options" and add a digital signature to your emails.

If you have already received such a key from a person, you can click on "Encrypt" to encrypt the emails so that outsiders cannot read them, even if they are intercepted.


or also

Relevant links

All instructions for certificates


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