ContributionsMost RecentMost LikesSolutionsreply / forward email = "400 bad request" I just added the second level of authentication on email sign in, and when I try to reply to or forward an email, I get"400 bad request". I don't know that adding the authentication is related. I have closed the app, restarted the computer, shut down and powered back up, and restarted the app; I get one reply, then "bad request". .