Why do I get a 503 error in To Do on the web?

If you're trying to sign in to Microsoft To Do on the web and see a 503 error, this could be related to limitations in the local network or restrictions on a corporate network.

Check with your IT admin to make sure none of these URLs are blocked:

  • .microsoft.com

  • .msecnd.net

  • .live.com

  • graph.windows.net

  • graph.microsoft.com

  • .office.com

  • .office.net

  • .office365.com

  • static2.sharepointonline.com

  • todo-web-endpoint.azureedge.net

  • .microsoftonline.com

  • .microsoft.io

  • .windows.net

  • microsoft-my.sharepoint.com

  • microsoft.sharepoint.com

  • login.microsoftonline.com

Need more help?

Expand your Office skills
Explore training
Get new features first
Join Office Insiders

Was this information helpful?

Thank you for your feedback!

Thank you for your feedback! It sounds like it might be helpful to connect you to one of our Office support agents.