How Would You Filter This Emails

I have a list of protonmail and I want to see the ones that are still working and the ones that got banned without checking manually and login to each one
I tried to do mail list check to see if I get some bounce but that seems not working
I do that with gmail but seems that protonmail not working like that

Automate the task with Browser Automation Studio. It's pretty simple and straightforward.

Have to tried to send the emails from Gmail? You can try to send a mail to all those emails from a Gmail account and it will notify you accordingly.