Now that bionet.diagnostics is a full newsgroup, many people with
newsreader software will prefer to access the group using this rather than
the mailing list. The correct address for this is:
biosci-server at net.bio.net
and the message you need is :
unsubscribe diagnost
All this is assuming that you were a member of the original prototype
newsgroup.
Kevin
Kevin O'Donnell
Scottish Agricultural Science Agency
Edinburgh
Scotland