Digital signatures and certificates - Microsoft Support
Certificate authority (CA) A certificate authority is an entity similar to a notary public. It issues digital certificates, signs certificates to verify their validity and tracks which certificates have been revoked or have expired. Top of Page Digital signature assurances The following terms and definitions show what assurances are provided by digital signatures. Authenticity The signer is ...
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, PowerPoint for Microsoft 365, Access for Microsoft 365, Visio Plan 2, Excel 2024, PowerPoint 2024, Access 2024, Excel 2021, Word 2021, PowerPoint 2021, Access 2021, Visio Professional 2021, Visio Standard 2021, Excel 2019, Word 2019, PowerPoint 2019, Access 2019, Visio Professional 2019, Visio Standard 2019, Excel 2016, Word 2016, PowerPoint 2016, Access 2016, Visio Professional 2016, Visio Standard 2016
Xbox Status | Xbox Support
Check the Xbox services, games, and apps for any service outages.
Xbox payment error messages and codes | Xbox Support
Get an error message or error code when making a purchase on Xbox? Find out what they mean.
Get in-app help for Outlook for iOS and Android - Microsoft Support
Contact support in Outlook for iOS or Android Send feedback for Outlook for iOS or Android
Applies To:
Outlook for Android, Outlook for iOS
Open encrypted and protected messages - Microsoft Support
Messages that have the encrypt-only policy applied can be read directly in new Outlook, Outlook on the web, Outlook for iOS and Android, Outlook for Windows versions 2019 and newer, and Microsoft 365.
Applies To:
Outlook for Microsoft 365, Outlook for Microsoft 365 for Mac, Outlook 2024, Outlook 2024 for Mac, Outlook 2021, Outlook 2021 for Mac, Outlook 2019, Outlook 2019 for Mac, Outlook 2016, Outlook 2016 for Mac, Microsoft365.com, Outlook on the web, Outlook.com, Outlook for Mac 2011, Microsoft Office, New Outlook for Windows, Outlook for Android, Outlook for iOS, Outlook Web App
How to add and change an email signature in Outlook
How to create or edit your Outlook signature for email messages. Include your signature, text, images, electronic business card, and logo.
Applies To:
Outlook for Microsoft 365, Outlook 2024, Outlook 2021, Outlook 2019, Outlook 2016, Office for business, Office 365 Small Business, Outlook on the web, Outlook.com, Microsoft Office, New Outlook for Windows, Outlook on the web for Exchange Server 2016, Outlook on the web for Exchange Server 2019
如何在 Outlook 中添加和更改电子邮件签名 - Microsoft 支持
摘要 Email签名在业务通信中创造专业一致性，并确保收件人在每封邮件中都有你的联系信息。 在Outlook 中，可以设置多个签名， (内部与外部、个人与业务) 的不同用途，并选择是自动将其包含在新的电子邮件、答复还是转发中。 签名可以包括文本、链接、图片和图像 (，例如手写签名或徽标 ...
Applies To:
Outlook for Microsoft 365, Outlook 2024, Outlook 2021, Outlook 2019, Outlook 2016, Office for business, Office 365 Small Business, Outlook on the web, Outlook.com, My Office for iPhone, New Outlook for Windows, Outlook on the web for Exchange Server 2016, Outlook on the web for Exchange Server 2019
Microsoft Software License Terms for Xbox and gaming applications for ...
As used here, “Android user” means a user using Xbox, Game Pass, Xbox Family Settings and Xbox Events for Android, and “iOS/iPadOS user” means a user using Xbox, Game Pass, Xbox Family Settings and Xbox Events for iOS or iPadOS.
Insert copyright and trademark symbols - Microsoft Support
Note: AutoCorrect for symbols only works for HTML (the default) and Rich Text format message. If you are using a plain text format message, you can still use the keyboard shortcuts previously listed.
Applies To:
Outlook for Microsoft 365, Outlook 2024, Outlook 2021, Outlook 2019, Outlook 2016
Xbox Support
Xbox Support ... Xbox Support