> "From: LISTSERV site administrators' forum
 > [[log in to unmask]]; on behalf of; xxxxx, xxxxx
 > [[log in to unmask]]
 >  To:  [log in to unmask]
 > ..."

 > As opposed to:

 > "From:  [log in to unmask]"
 > To:     Listname@..."

Outlook uses that format to display messages which have Sender:
headers.  LISTSERV puts the poster's name/email in a Sender: header.
You may be out of luck.

De