if a very specific, duress password is entered, the mailbox should self-destruct, or delete all emails, or reset to a default view displaying only a few "public" emails, without any indication to the user that this has been done. If people know about the duress password feature (i.e. it's advertised on the proton mail website), then coercers will know if it had been used. deleting all private and uncategorized emails, and displaying only public emails would probably be the best auto feature
Anonymous
if a very specific, duress password is entered, the mailbox should self-destruct, or delete all emails, or reset to a default view displaying only a few "public" emails, without any indication to the user that this has been done. If people know about the duress password feature (i.e. it's advertised on the proton mail website), then coercers will know if it had been used. deleting all private and uncategorized emails, and displaying only public emails would probably be the best auto feature