However, Users will then have 15 minutes to use the passcode to view their encrypted message.
Earlier, people receiving the encrypted messages had to be logged into a Microsoft account to view them. Which was not much of a hassle for Microsoft customers, but everyone else had to sign up for a Microsoft account before they could view their encrypted messages.
Office 365's technical product manager, Shobhit Sahay wrote that users can then choose to reply to the message or forward it, and all responses will be encrypted.
The service is included at no extra charge with the E3 and E4 editions of Office 365. It also comes bundled with the standalone version of Azure Rights Management, which costs US$2 per user/month, the report said.