Errors CAA2000B, 4usqa, and 49dvs when trying to sign in to classic Outlook and Outlook for Mac

Failure to obtain a Teredo IP address can occur when there’s an issue with your Teredo adaptor, when a device on your network is blocking the Teredo protocol or if there’s software installed on your PC that’s disabling Teredo functionality. Without a Teredo IP address, you'll be unable to connect to multiplayer gaming in select games on the Xbox network.

You see the following error code and message when you launch a game or an app on your Xbox console: 0x803f8001

To learn about digital signatures (also known as digital ID), what they can be used for, and how to use them in Word, Excel, and PowerPoint, see All about digital signatures. Create a signature line in Word or Excel (desktop) In the document or worksheet, place your pointer where you want to create a signature line. On the Insert tab, select Add a Signature Line in the Text group. In the ...

When you share copies of Microsoft 365 document files with clients or colleagues, it's a good idea to review the document for hidden data or personal information and remove it.

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

Learn how to fix a failed delivery message from the postmaster when using Outlook.

If you see “UPnP Not Successful” in your Xbox console's network settings, your router may need an update.

Learn what error 0x87af000D means when trying to install or uninstall a game on your Xbox console.

Learn how to fix error 87E0000F so you can download games and apps on your Xbox console or Windows PC.