S/MIME requires that you acquire a certificate to validate your identity and, of course, requires that your recipient have one, too. S/MIME encryption can be tricky to configure – namely because your intended recipient will need to be using an email service that supports S/MIME and have it set up and ready to rock. We'll take a brief look at each method below, then dive into some step-by-step setup guides later in the article.
The recipient of your message will therefore require the private key that matches up with the public one – or else they won't be able to see what you've written!Ĭurrently, there are three ways to encrypt Outlook emails. Encryption requires the use of a set of keys – a public key (used to do the encrypting) and a private one (used for both encrypting and decrypting). When you encrypt an email, you're turning it into undecipherable ciphertext, whereas before it was plain text that anybody could read. First thing's first, it's a good idea to get an idea of what encrypting an email actually entails.
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