Email (like other forms of communication) makes it rather difficult to verify authenticity. Just because you receive an email from someone doesn’t mean it actually came from that person. Perhaps the email was forged, perhaps the mail server was hacked to send email, or perhaps the sender’s device was stolen. There’s one sure-fire way for recipients to verify the authenticity of your messages, however, and that way is through digital certificates and digital signing. We’ll walk you through the process of creating a certificate and using it to sign your emails in this how-to.