git-send-email doesn't like me+git ML

OK, this is bewildering. I tried a couple of times sending a trivial patch (the one that makes git-stash show keep quiet when there aren't any stashes), but it never made it to the list every time I used git-send-email, yet as soon as I did it as a regular email, i.e., starting a new message in mutt, pasting the patch into the body, and sending it, it worked just fine.

My mail log shows the mails (the one thru git-send-email) went out just fine. And it always worked when I tried to use git-send-email to send the patch to my gmail address. It just doesn't work with the list - and that obviously can't be. 8-)