Last modified: 2010-05-15 15:56:53 UTC
From what I can determine, userMailer defaults $reply to as false line 78 in userMailer.php: function userMailer( $to, $from, $subject, $body, $replyto=false ) and nothing in the 1.6.7 ever calls it setting a reply-to address. In particular, it doesn't seem to be set by User::sendmail(). I suspect that this is why some recipients are not receiving password resets from my wiki; their spam blockers may reject mail without a reply-to. I'm not sure Fixing this may require also committing a fix for bug 4347. Thanks!
Very few mails have a reply-to set.