I have setup emacs to use gnutls for smtp authentication with a partially complete .authinfo file (it has no password). When I send an email, it prompts for the password, and if I type that in correctly, it works perfectly.
If I type it in incorrectly though, the authentication fails (as it should), but I have to restart emacs to try again because it saves the bad password in memory, and reuses it if I send again. Is there a way to flush the saved password so I will get prompted again?