This is most probably the FIX15M3A problem. The best way to solve it is to
install the FIX15M3A fix (which wasn't shipped to everybody) on the servers
which house a MAILBOOK list. Unfortunately I won't be able to send it to you
since I won't get back to FRECP11 until monday. What I could do is have
ERIC@FRECP11 send a copy of the unedited FIX15M3A install job to someone, who
would then have to edit it and transmit it to the proper persons. If someone
has time to do that right now, please send me a piece of mail (not to the list,
and not an interactive message please).
 
  Eric