Signing your email messages with a digital ID helps to prove your identity and prevent message tampering.

Whether it’s a new job title (congratulations!) or a phone number change, make sure you keep your email message signature up-to-date. If you're using new Outlook, for more information about email signatures, or if you haven’t created one yet, see Add a signature to messages. Select File > Options > Mail > Signatures. Select the signature you want to edit, and then make your changes in the ...

在Outlook中，您可以為電子郵件建立一或多個個人化簽名。 您的簽名可以包含文字、鏈接、圖片 (影像，例如您的手寫簽名或 ...

Create a custom signature block with a picture and social networking icons to add as a new signature for your email messages.

How to create or edit your Outlook signature for email messages. Include your signature, text, images, electronic business card, and logo.

If you purchased a Microsoft 365 Personal subscription from the iOS app, go to Settings > [your name] > Subscriptions. Microsoft 365 subscriptions purchased from the app will be charged to your iTunes account and will automatically renew within 24 hours prior to the end of the current subscription period, unless auto-renewal is disabled beforehand.

Learn how you can use Outlook for Android or iOS to sign into your Microsoft personal or work/school account.

Microsoft Support is here to help you with Microsoft products. Find how-to articles, videos, and training for Microsoft Copilot, Microsoft 365, Windows 11, Surface, and more.

若要在 iPhone 上下載並安裝應用程式，請流覽 iOS 版 Microsoft 365 Copilot。 您需要使用Microsoft帳戶登入，才能在iPhone或iPad上檢視、建立及儲存盤案。

Restore account credentials from Microsoft Authenticator You can restore or recover your account credentials saved by Microsoft Authenticator. Note: You can only backup and restore on the same device type. For example, accounts backed up using an iOS device cannot be restored on an Android device.