Article targeted at organization Microsoft 365 admins containing the information required to enable users to connect to their tenant with Thunderbird
@rtanglao is already working on this.
Since Jan 8, 2026.
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Description
We'd like to have an official resource that users can point their administrators at that will provide them with Thunderbird's Microsoft Entra Client ID so they can allow list it for their tenant, which will enable users to connect to their tenant with Thunderbird. At a minimum, they will need an authoritative source for the following information:
- Client ID: 9e5f94bc-e8a4-4e73-b8be-63364c29d753
- Required OAuth scopes:
- For EWS
offline_accesshttps://outlook.office.com/EWS.AccessAsUser.All
- For Graph API (This list will grow throughout this year):
https://graph.microsoft.com/User.Read
- For EWS
All of this information is already publicly available in our code on the Internet (see https://searchfox.org/comm-central/source/mailnews/base/src/OAuth2Providers.sys.mjs), but the desire here is to have an authoritative source at a well-known location for administrators to configure their tenant for access from Thunderbird.
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- Forks
- 1
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thunderbird/knowledgebase-issues#231 · 1 assignee ·