I didn't because I'm not paying... But I do know that the bridge ensures that all data is always locally de and encrypted before being read from and sent to the

I didn't because I'm not paying... But I do know that the bridge ensures that all data is always locally de and encrypted before being read from and sent to the Protonmail servers. So Protonmail can never read your mail. On the other side of the bridge, your standard email client can talk normal imap (which does not support encryption). I think it is rather elegant.