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How to Send Encrypted Email Messages in Outlook 2013, 2016, 2019 and Outlook for Office 365

office 365 message encyrption logo

How to Send Encrypted Email Messages in Outlook 2013, 2016, 2019

This feature is available to Office 365 Subscribers only.

When you need to protect the privacy of an email message, encrypt it. Encrypting an email message in Outlook means it’s converted from readable plain text into scrambled ciphertext. Only the recipient who has the private key that matches the public key used to encrypt the message can decipher the message for reading. Any recipient without the corresponding private key, however, sees indecipherable text. 

Office 365 Message Encryption (Information Rights Management) – To use Office 365 Message Encryption, the sender must have Office 365 Message Encryption, which is included in the O365 E3 license.

Encrypt with Office 365 Message Encryption

Before you process, the following steps check if Office 365 Email encryption is enabled.

If you are an Office 365 subscriber, here is what is new to you:

In an email message, choose Options, select Encrypt and pick the encryption that has the restrictions you want to enforce, such as Encrypt-Only or Do Not Forward.

Send Encrypt Email Messages in Outlook 2013

 

For Outlook 2019, 2016 and 2013,

In an email message, select Options > Permissions and pick the encryption option that has the restrictions you’d like to enforce, such as Do Not Forward.

Encrypt a single message

  1. In message that you are composing, click File > Properties.
  2. Click Security Settings, and then select the Encrypt message contents and attachments check box.
  3. Compose your message, and then click Send.

 

Encrypt all outgoing messages

When you choose to encrypt all outgoing messages by default, you can write and send messages the same as with any other messages, but all potential recipients must have your digital ID to decode or view your messages.

  1. On the File tab. choose Options >Trust Center > Trust Center Settings.
  2. On the Email Security tab, under Encrypted email, select the Encrypt contents and attachments for outgoing messages check box.
  3. To change additional settings, such as choosing a specific certificate to use, click Settings.

 

Need Help? Contact Us

 

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