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Microsoft OME Viewer app for iOS lets you read encrypted messages
How do you open and view messages that are protected with Microsoft's Office 365 Message Encryption (OME), on your iPhone or iPad? Microsoft's got an app for that. If you're an iPhone or iPad user, and you receive mail from Outlook users who protect their messages with Microsoft's Outlook encryption, you'll want to download the company's free OME Viewer app for iOS.
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