There was a change is mutt's handling of an IMAP "BAD" response. However, Etch's libsasl2 doesn't seem to recognize fastmail's OTP method, so it doesn't get a chance to hit the bug. Attached is a possible -proposed update for the bug, which fixes the behavior for me, and restores the prior intent of the mapping from IMAP_CMD_BAD => IMAP_AUTH_UNAVAIL which lets the sasl auth system end gracefully, at which point mutt fallback to other authenticators, such as "LOGIN".
** Attachment added: "proposed debdiff" http://librarian.launchpad.net/4939613/mutt_1.5.12-1ubuntu1.1.dsc.debdiff ** Changed in: mutt (Ubuntu) Status: Needs Info => Fix Committed -- edgy beta - mutt sasl authentication broken https://launchpad.net/bugs/65821 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs