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PSA: Today Thunderbird 102.7.0 releases with a crucial change to how we handle #OAuth2 authorization with #Microsoft accounts. This may involve extra work for users currently using Microsoft-hosted accounts through their employer or educational institution.

READ MORE: blog.thunderbird.net/2023/01/i…

#Enterprise #Outlook #Exchange


Important: Thunderbird 102.7.0 And Microsoft Office 365 Enterprise Users

In Thunderbird 102.7.0, there are changes to the way we handle OAuth2 authorization with Microsoft accounts. This may involve some extra work for users currently using Microsoft-hosted accounts through their employer or educational institution.
Jason Evangelho (The Thunderbird Blog)
#microsoft #outlook #exchange #enterprise #oauth2
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UPDATE:
We have delayed further rollout of Thunderbird 102.7.0 while a suitable patch is implemented to resolve a critical OAuth issue

If your client was already upgraded to 102.7.0 and you wish to use a previous version for the time being, please install and launch an older version, for example, 102.6. Thunderbird should automatically detect your existing profile.

However, you can launch the Profile Manager if needed by following these instructions: support.mozilla.org/en-US/kb/p…

profile manager create and remove thunderbird profiles | Thunderbird Help

Thunderbird stores your personal information and settings in a profile folder. Learn to work with different profiles on Thunderbird.
support.mozilla.org
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UPDATE:
A solution to the authentication issue will ship with version 102.7.1, releasing during the week of January 23.

Version 102.7.0 is now available for MANUAL download only, to allow unaffected users to choose to update and benefit from the fixes it delivers (thunderbird.net/en-US/thunderb…)

Please note that automatic updates are currently disabled, and users of Microsoft 365 Business are cautioned to not update.


Thunderbird — Release Notes (102.7.0)

Thunderbird