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Thunderbird and Office 365 not syncing

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  • Last reply by sfhowes

bretking
bretking
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Office365 stopped working 3 days ago with my greeley.owner@glassdoctor.com Account. It give an error saying user is authenticated but not connected. It will send messages through the SMTP but will not download or sync. A few months ago I had to switch the Authentication to OAuth2 and it began working again. It appears to be a similar issue. I confirmed the account is working through the browser but not with Thunderbird. I have other Office 365 accounts that work with different authentication.

Office365 stopped working 3 days ago with my greeley.owner@glassdoctor.com Account. It give an error saying user is authenticated but not connected. It will send messages through the SMTP but will not download or sync. A few months ago I had to switch the Authentication to OAuth2 and it began working again. It appears to be a similar issue. I confirmed the account is working through the browser but not with Thunderbird. I have other Office 365 accounts that work with different authentication.

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sfhowes
sfhowes
  • Top 25 Contributor
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See https://support.mozilla.org/en-US/questions/1400733#answer-1556344