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Adds a page related to Proton Mail Bridge integration

Samuel FORESTIER 2025-01-11 19:21:01 +00:00
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3.2-Proton-Mail-Bridge-Users.md Normal file

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## About Proton Mail Bridge integration
`thunderbird user.js` enforces certificate strict PKP (Public Key Pinning) verification. This breaks software performing MITM (such as a local antivirus), or even Proton Mail Bridge.
When connecting Thunderbird **for the first time** to Proton Mail Bridge, this hardening measure (`1223`) must be relaxed :
- `security.cert_pinning.enforcement_level` to `1`
Once incoming/outgoing servers enrollment is done, you may switch back to template value :
- `security.cert_pinning.enforcement_level` to `2`