A few months back our mailman listserv started showing up with an occasional short message sent out to the list members who receive individual messages that had the usual message footers attached as an "inline attachment" rather than including it in the body of the message. It went on this way for months with only an occasional rare message showing the footers as an inline attachment but it gradually got worse until NOW someone complained about it and when I started looking I realized that 9 out of 10 of our messages now show the footers as an attachment to the message email rather than being in the body of the email.

The odd thing is that it happens for MOST users but some members seem to be immune to the issue. A scan through my two message private archives for this list shows that some list members don't seem to EVER have the problem while MOST list members do...

I'm completely baffled here. For the LIFE of me I can't figure out what would cause this to happen. Yet it clearly IS happening.

Can anyone here offer a suggestion as to what the cause of this strange behavior may be and how to correct it?

Thanks!