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Authentication error with Outlook

Rich W.

I have an outlook account that will not install. I get the challenge, to send me an authentication number at another email address, and that says okay, you can close this window and continue, but then at 'continue' in Thunderbird I get an authentication error.

-I have added the email on another computer in Thunderbird and send/receive email, no error -I have added the email in the New Outlook email app and send/receive email, no error -I have added a different outlook account in Thunderbird on this computer, no error -I can log into the Microsoft live email app and send/receive email, no error -I have uninstalled Thunderbird as admin, removed the Thunderbird folders in %appdata% and %localappdata% for both the admin and user accounts, cleared the cache and cookies on the computer and in Thunderbird (including the token), then reinstalled Thunderbird under the admin account, logged into Thunderbird as the user and added the problem Outlook account; same issue. Press Continue and authentication error, even though the challenge screen says everything is connected and okay. Then I install the other Outlook account without any issues.

I am convinced that somewhere on this machine there is something that knows and hates this one email account. It is possibly because the profile file had a problem and I deleted the xulstore.json file per instructions to resolve the problem, but the file is there and the profile is working again for the other Outlook accounts, just not this one particular account.

Any Obi-wan or other wise counsel out there?

Build 20260910221217

I have an outlook account that will not install. I get the challenge, to send me an authentication number at another email address, and that says okay, you can close this window and continue, but then at 'continue' in Thunderbird I get an authentication error. -I have added the email on another computer in Thunderbird and send/receive email, no error -I have added the email in the New Outlook email app and send/receive email, no error -I have added a different outlook account in Thunderbird on this computer, no error -I can log into the Microsoft live email app and send/receive email, no error -I have uninstalled Thunderbird as admin, removed the Thunderbird folders in %appdata% and %localappdata% for both the admin and user accounts, cleared the cache and cookies on the computer and in Thunderbird (including the token), then reinstalled Thunderbird under the admin account, logged into Thunderbird as the user and added the problem Outlook account; same issue. Press Continue and authentication error, even though the challenge screen says everything is connected and okay. Then I install the other Outlook account without any issues. I am convinced that somewhere on this machine there is something that knows and hates this one email account. It is possibly because the profile file had a problem and I deleted the xulstore.json file per instructions to resolve the problem, but the file is there and the profile is working again for the other Outlook accounts, just not this one particular account. Any Obi-wan or other wise counsel out there? Build 20260910221217

Toate răspunsurile (2)

don't close the window until you vomplete the authentication in the other window. Thunderbird only know about the one it asked to open not the next that outlook send saying close, so i6t continue to attempt to complete the authentication, so just leave it open until outlook stops opening new tabs and windows and then close it.

I left it open and it made no difference; leaving it open or closing it. Uninstalling and deleting all of the things in my original post has made no difference. I can delete and add again other Outlook email accounts but not that one.

The profile file got messed up because none of the accounts on there had any details on the right side of the page when you clicked on the email account under account settings. After I deleted the xulstore file the other account information showed up on the right but the problem account never did or never worked. That was a couple hours ago and things at the beginning are getting fuzzy now. But deleting everything that I deleted and still having the problem with that one but not other Outlook accounts tells me something is stuck somewhere. I even deleted every entry of that email account from the registry and it still didn't help.

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