When an external recipient receives an encrypted message, they see an encrypted attachment and an instruction to view the encrypted message.
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| The encrypted message appears as an attachment in a message in the recipient’s inbox, with instructions for how to view it. |
You can open the attachment right from your inbox, and the attachment opens in a new browser window. To view the message, you just follow the simple instructions for authenticating via your Office 365 ID or Microsoft Account. You must use a Microsoft account with an email address that matches the one the encrypted message was sent to. If you do not want to sign in with a Microsoft account there is also an option to request a one-time use passcode to read the message.
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| Once you are authenticated, the content of an encrypted message appears. |
The Message Encryption interface, based on Outlook Web App, is modern and easy to navigate. You can easily find information and perform quick tasks such as reply, forward, insert, attach, and so on. As an added measure of protection, when the receiver replies to the sender of the encrypted message or forwards the message, those emails are also encrypted.
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| When you reply to an encrypted message you’ve received, your reply is also encrypted. |