Updated step-by-step guide on encrypting email with S/MIME certificate

If you're using a public email service like Gmail or O365 you should know that Google and Microsoft respectively have access to your inboxes and are able to analyze and source them (machine analysis).

If you won't to avoid that I'd recommend to think about way to encrypt your email, so it will be visible only to you and your recipients.

https://www.linkedin.com/pulse/best-ways-send-encrypted-email-2021-eugene-hauptmann/