Firewall is blocking the Protonmail Bridge app

[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.

 

[Marcos 4,844]

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

[Guest Same problem]

I am experiencing the same issue. Did find how to fix it ?

[itman 1,602]

Based on this posting;

Quote

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?

https://www.reddit.com/r/ProtonMail/comments/xsaspx/what_domainsip_addresses_used_by_proton_mail/

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.