Previously, when you received a message encrypted with Office 365 Message Encryption, you could view the encrypted message only by using a Microsoft account. Now, with the addition of the One-Time Passcode capability, you can view an encrypted message you receive without having to sign in with a Microsoft account. If you have a Microsoft account, you now have the option to view an encrypted message by selecting one-time passcode instead of signing in with your account.
When opening the encrypted email, you should see a window similar to the image shown below
- As soon as you select the option to use one-time passcode, you will be sent a passcode in an email message to your inbox.
- Enter the passcode on the Office 365 Message Encryption Portal page, as shown below.
- When the passcode is entered correctly, you can see the encrypted email in plain text in the familiar Outlook Web App user interface. You can then choose to reply to the message or forward it. All responses you make will be encrypted.