Want to add a padlock to your email messages? You can use encryption and digital signatures in new Outlook, classic Outlook, and Outlook on the web for work or school accounts to increase the security of messages. Encrypting an email message in Outlook means it's converted from readable plain text into scrambled cipher text. Only the recipient who has the private key that matches the public ...

Microsoft Lens is an app for your iOS device that lets you easily capture, use, and share information from documents, whiteboards, photos, or business cards.

Use the Information Protection viewer to view protected files in Windows, Android, iOS, or Edge.

了解如何離線更新您的 Xbox 主機。

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Synchronization of contacts between your Outlook account and your Apple iPhone or iPod touch requires Apple iTunes. You can configure which items are synchronized during a one-time set up process.

Use your mobile device to unlock or edit a file that another user has locked for editing.

Add a recipient's digital ID to your Contacts in classic Outlook To send and receive encrypted email messages, both the sender and the receiver must share their digital ID certificates with each other. Open a message that is digitally signed as indicated in the message list by a Signature icon.

Phone Link works to connect your iPhone to your Surface so you can see phone notifications , send and receive iOS Messages, and place and answer calls, all from your Surface.

Important: Apple has fixed an issue in 11.0 that caused a "Cannot send mail" error for Outlook.com and Exchange mail accounts. If you're on iOS 11.0, update your device to iOS 11.0.1 or later to fix the issue.