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Firewall is blocking the Protonmail Bridge app

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Guest Vinicius

Good afternoon. The Protonmail Bridge app is being blocked by the ESET firewall. When I turn it the firewall off, the app works normally. There are other apps that are being affected as well.


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Do you use the firewall in policy-based mode? Does switching to automatic mode make a difference?

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  • 1 month later...

Based on this posting;


Hi! I have a firewall that scans HTTPS traffic, and Proton Mail Bridge does not accept the certificate. (Which makes sense.) I would like to allow the traffic to skip inspection. What domains or IP addresses are accessed by the Bridge that can be excluded?


The issue is Eset SSL/TLS protocol scanning. Exclude the .exe associated with the Proton Mail Bridge app from SSL/TLS protocol scanning and see if that resolves the issue.

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