This guide describes how to integrate a personal certificate for signing and encrypting emails in Evolution. To do this, you need a certificate, which must be available as a .p12 file.
How do I request a personal certificate?

Please note the information on Email Encryption.

Import certificate

1. Open the “Preferences” via the key combination: Shift + Ctrl + S or via “Menu” - “Edit” - “Preferences”.

   

2. Now call up the certificate settings. Navigate to the “Certificates” tab. Select the “Import” button.

   

3. The file manager of your desktop environment opens. Navigate to your certificate file, select it and choose “Open”.

   

4. Enter the password for your certificate and confirm with “OK”.

   

5. Your certificate will now appear in “Your Certificates”.

   

Activate signature and encryption

1. Open the “Preferences” via the key combination: Shift + Ctrl + S or via “Menu” - “Edit” - “Preferences”.

   

2. Call up the settings for the mail account. You are automatically in the “Mail accounts” tab. Select your email account in the list. Select “Edit”.

   

3. Navigate to the “Security” tab in the “Account Editor”. In the “Secure MIME (S/MIME)” section, click on the “Select” button for the “Signing certificate” and the “Encryption certificate”.

   

4. In the “Select certificate” window that opens, select “Imported Certificate” from the certificate dropdown and confirm with the “OK” button.

   

5. It is recommended to activate the options “Always sign outgoing messages when using this account” and “Always encrypt outgoing messages when using this account”. Confirm the changes by selecting the “OK” button.
6. The setup is now complete. When you compose an email, the buttons for signing and encrypting now appear.