If a list is "Validate= Store only", it doesn't require password
validation and you won't get the message. Otherwise, password validation
is required. If you happen to have a password on the target LISTSERV
(note that this could well not have been a NETWIDE delete), fine, the
deletion is done. If you don't, it's treated as a SIGNOFF command from
the user and forwarded to the list owners for validation.
Eric