Avatar for Username

Mozilla 도움말 검색

고객 지원 사기를 피하세요. 저희는 여러분께 절대로 전화를 걸거나 문자를 보내거나 개인 정보를 공유하도록 요청하지 않습니다. "악용 사례 신고"옵션을 사용하여 의심스러운 활동을 신고해 주세요.

자세히 살펴보기

이 쓰레드는 보존되었습니다. 만약 도움이 필요하시면 새로운 질문을 올려주세요.

401 error on attempting to connect to outlook.com calendar

  • 1 답장
  • 0 이 문제를 만남
  • 9 보기
  • 최종 답변자: srboardman

srboardman
srboardman
more options

Running Thunderbird 115.8.0 (64 bit) on Windows 11.

Until recently all was working well accessing an outlook.com calendar (on server outlook.office365.com) using tb-sync and Provider for Exchange ActiveSync (latest versions).

Now I get the following error: "Could not authenticate, check username and password (HTTP Error 401)." (Meanwhile email is working fine with the same credentials).

I then tried using the new Thunderbird non-add-on exchange calendar integration, with identical results.

I then deleted all the cached outlook passwords (settings -> Privacy and Security -> Passwords -> Saved Passwords) and tried again, with identical results.

Interestingly, after deleting the passwords, closing and reopening Thunderbird, it successfully downloaded new emails from outlook.com (in spite of supposedly not having the passwords).

Help please.

Running Thunderbird 115.8.0 (64 bit) on Windows 11. Until recently all was working well accessing an outlook.com calendar (on server outlook.office365.com) using tb-sync and Provider for Exchange ActiveSync (latest versions). Now I get the following error: "Could not authenticate, check username and password (HTTP Error 401)." (Meanwhile email is working fine with the same credentials). I then tried using the new Thunderbird non-add-on exchange calendar integration, with identical results. I then deleted all the cached outlook passwords (settings -> Privacy and Security -> Passwords -> Saved Passwords) and tried again, with identical results. Interestingly, after deleting the passwords, closing and reopening Thunderbird, it successfully downloaded new emails from outlook.com (in spite of supposedly not having the passwords). Help please.

모든 댓글 (1)

srboardman
srboardman 질문자
more options

Additional info. I also tried turning on Outlook two factor authentication and using an app password, and that didn't work either. (I then disabled two factor authentication and tried again with the original password and that still didn't work.)