[MlMt] Bad HTML tags in signatures

[Steven Bellovin]

Twice in the last two days, including just now with 6222, I've gotten a message about bad HTML tags in my signature. There are none, or at least I haven't inserted any. Both times, I was replying to a message that was multipart/alternative with one part HTML. I have signature placement set to Bottom, but in these cases I was top-replying.

        --Steve Bellovin, https://www.cs.columbia.edu/~smb