In the MS Outlook File menu (MS Outlook Backstage View) click Options and in the Trust Center tab click Trust Center Settings…. In this case, composing and sending messages is the same as with unencrypted messages, but the sender and recipient will need to have a digital ID in order to decrypt the message. It is also possible to set Outlook to encrypt messages globally by default.
Now, all that’s left is composing and sending the message. In the resulting Security Properties window, check Encrypt message contents and attachments. In the next window click Security Settings…. When editing a new message in the Options ribbon click More Options. NOTE: The below screenshots were taken from Microsoft Outlook 2013 – in Outlook 2010 and Outlook 2016/2019 the procedure, option names and their locations are all identical. Let’s now proceed to encrypt a single message. Messages encrypted with such certificate ensure the recipient about the authenticity of an e-mail and keep it unreadable to others. You can learn more about it here.īefore it is possible to start encrypting and decrypting messages, both the sender and recipient should get a personal mail certificate.
From then on it is possible to send encrypted messages similarly to sending not encrypted ones. It means that both the sender and recipient must send a digitally signed message, which allows adding the certificate to Outlook Contacts (more in this Microsoft article). The recipient saves the certificate and uses the public key to encrypt the sender’s messages. The certificate is sent with a digitally signed message.
In order to send and read encrypted messages, both the sender and recipient must share a digital ID, which contains the private key stored on the sender’s computer and a certificate with a public key. Microsoft Outlook 2019, 2016, 20 message encryption protects the privacy of the message by converting it from readable plaintext to scrambled ciphertext. Whatever the reason, encrypted e-mails are like sealed envelopes, as opposed to the postcard-like availability of unencrypted e-mails. There may be plenty of reasons for that – from private ones, like writing a personal letter to a close friend or telling your family where you usually keep your keys, to more formal and serious situations, like mailing a check to pay a bill. Sometimes there is a need for additional protection of your private messages from other people.
: This post was updated on April 14, 2017.
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