New Restrictions on Membership of Mailing Lists on Joint Academic
                        NETwork(JANET) in the UK
 
The following note explains some new restrictions which are being applied to
LISTSERV expansion at the Rutherford Appleton Laboratory(RAL) which result in
traffic giving rise to volume related charges. The users are being sent a
warning message suggesting that they resubscribe to the list concerned via an
Internet account or appropriate mail gateway.
 
Until now, JANET mailing lists have been open to any valid electronic mail
address. Following recent discussions with British Telecommunications(BT), it is
now necessary to restrict membership of JANET mailing lists where the address
results in traffic being sent to the BT operated public X.400 mail service.
UKERNA has put in place the necessary blocks on the JANET mail gateway service.
JANET mail managers will be contacted if their co-operation is needed to make
this policy effective.
 
The reason for mailing to the List Owner's list is to inform you that on or
shortly after the 1 Oct 1996. You may as a List Owner's receive bounced mail
message(s) from your list for one of these members.
 
Penny Windebank
RAL Listserv Admin.