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.

Every rule needs at least three things: a name, a condition, and an action. Rules can also contain exceptions to conditions. You can add multiple conditions, actions, and exceptions at each step by choosing Add a condition, Add an action, and Add an exception. For example, to create a rule that deletes all email with the word "weather" in the subject:

Important: You don't need to remove old security information unless there is an account security risk (e.g. someone else has access to your old mailbox).

键入电子邮件地址，例如键入 cheryl.parsons64@yahoo.com 时，Outlook 会返回在主题、邮件正文或许多类型的附件中包含该电子邮件地址，以及来自该电子邮件地址的所有电子邮件。 若要将搜索结果限制为来自某电子邮件地址的电子邮件，请在搜索框中键入发件人：cheryl.parsons64@yahoo.com。

Problem. In SharePoint or OneDrive, you experience one or more of the following problem scenarios: Scenario 1: You're missing a file, folder, or item from a list or library.

A family group is a set of individuals connected through the Microsoft Family Safety app on their Windows, Xbox, or mobile devices. Establishing a family group is an easy, effective way to encourage healthy online habits and manage busy schedules.

With External Access for Teams, you can add or invite anyone outside of your Teams org who uses Teams, Teams for personal use, Skype (for consumers), and Skype for Business to a one-to-one chat.

If your account has been hacked, use our sign-in helper tool below to help guide you to the right solutions. The tool will ask for your email address or phone number, and either show appropriate self-help, or offer the chance to talk to an agent.

Credential Manager lets you view and delete your saved credentials for signing in to websites, connected applications, and networks. To open Credential Manager, type credential manager in the search box on the taskbar and select Credential Manager Control panel.

Argument. Description. start_date . Required. A date that represents the first, or starting date of a given period. Dates may be entered as text strings within quotation marks (for example, "2001/1/30"), as serial numbers (for example, 36921, which represents January 30, 2001, if you're using the 1900 date system), or as the results of other formulas or functions (for example, DATEVALUE("2001 ...