[tor-talk] Proton Mail and Tutanota - not exactly Tor friendly.

[Andre Mankel]

Hey there,

According to my knowledge the only check protonmail performs is a GeoIP-Filter which can be disabled in the web app settings. (1)
If your authentication logs are set to basic or advanced, this may be a reason for the challenge. If they really believe in what's written on their about-page they should be Tor-friendly too ;)

Kind Regards,

Andre Mankel

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(1) Settings -> Security (https://mail.protonmail.com/security)