At 08:59 23/01/2002 -0500, you wrote: Many thanks Stan .... I checked and double-checked both logs but could find no indication that was any help. What I did in the end was install the lot on the backup machine and bingo everything went out. I will now look at the machine proper and reinstall W2000 just in case the brownouts corrupted a system file. Took me 5 hours of trying before moving to back-up machine and 5 minutes to boot and the problem was resolved. Wayne >Check the log file for LSMTP. DO the same for Listserv. See what the most >recent entries in those files say. This may shed some light as to the >source of the problem.