When I send messages to the list, they have this in the header:

Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed

But when they come back to me from the list, they have this in the header 
instead:

Content-Type: text/plain; charset="us-ascii"

Does this mean that flowed text is not allowed on the list?  I also see 
that the spaces before newlines (used to designate flowing of text) have 
all been removed.  Are we doing this on purpose?

Flowed text is nice when different readers have different screen widths. 
The flowing should help.

Mike