I'm guessing it is these two. I don't know what mail client Allison uses but perhaps when it sees the request for the 'x-user-defined' character set it freaks. Most MIME clients put ISO_LATIN1 there and they are not bothersome. Content-Type: text/plain; charset=x-user-defined Content-Transfer-Encoding: 7bit This reminds me yet again of a what a _wonderful_ hack to Majordomo, Listserve, or what ever that would take the message submission and _reformat it_ into plain text regardless of how it was sent. Then send it to the list that way (and strip off attachments etc) That is the kind of list I want to subscribe to because even when a newbie screws up (and Marvin isn't one, he just has some interesting headers) no one suffers.