View previous versions of a file. If your file is stored in OneDrive or SharePoint in Microsoft 365, you can go back to a previous version of file.

A Desktop Alert is a notification that appears on your desktop when you receive a new email message, a meeting request, or a task request. By default, Desktop Alerts are turned on.

Safe senders and recipients. Safe senders are people and domains you always want to receive email messages from. Safe recipients are recipients that you don't want to block, usually groups that you’re a member of.

A team is a group of people gathered to get something big done in your organization. Sometimes it’s your whole organization.. Teams are made up of channels, which are the conversations you have with your teammates.Each channel is dedicated to a specific topic, department, or project. For example, the Mark 8 Project team has General, Design, Digital Assets Web, Go to Market Plan, and Research ...

若要将其关闭，请将设置切换为“关闭”。 关闭 Microsoft Defender 防火墙可能会使设备（以及网络，如果有）更容易受到未经授权的访问。

Under Delegate Permissions, set these five options to None: Calendar, Tasks, Inbox, Contacts, and Notes.. Selecting None for each of these options gives the delegate the basic ability to send messages on your behalf, but nothing more. Grant the delegate additional permissions (such as the ability to see your inbox) by selecting Inbox, and from the dropdown select Reviewer, Author, or Editor.

Install the S/MIME control. Get a certificate, sometimes referred to as a key or digital ID. The first step to use S/MIME is to obtain a certificate from your IT administrator or helpdesk.

Establishing internet boundaries is an important way to protect yourself and your family from inappropriate web content. Microsoft Family Safety web and search filters work across any Windows, Xbox and mobile device that has the Microsoft Edge browser and Family Safety apps installed.

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Note: Exporting and importing a mailbox using a .pst file isn't supported in new Outlook at this time. To export a mailbox, you need to use the desktop version of Outlook (also known as classic Outlook) following the steps below.Classic Outlook is included with Microsoft 365 subscriptions that include desktop apps such as Microsoft 365 Personal or Family or Microsoft 365 Business Standard, and ...