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?
Open the “Preferences” via the key combination: Shift + Ctrl + S or via “Menu” - “Edit” - “Preferences”.
Screenshot Evolution - Edit menu
Now call up the certificate settings. Navigate to the “Certificates” tab. Select the “Import” button.
Screenshot Evolution - Settings for certificates
The file manager of your desktop environment opens. Navigate to your certificate file, select it and choose “Open”.
Screenshot Gnome Dateien - Open file
Enter the password for your certificate and confirm with “OK”.
Screenshot Evolution - Unlock certificate
Your certificate will now appear in “Your Certificates”.
Screenshot Evolution - Settings for certificates
Activate signature and encryption
Open the “Preferences” via the key combination: Shift + Ctrl + S or via “Menu” - “Edit” - “Preferences”.
Screenshot Evolution - Edit menu
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”.
Screenshot Evolution - Settings for email accounts
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”.
Screenshot Evolution - Account editor for security
In the “Select certificate” window that opens, select “Imported Certificate” from the certificate dropdown and confirm with the “OK” button.
Screenshot Evolution - Select certificate
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.
The setup is now complete. When you compose an email, the buttons for signing and encrypting now appear.
Screenshot Evolution - Compose message