On Sun, 18 Jan 2004, Aircastle Standard Poodles wrote:

>I have a list member who keeps trying to post, only to have this returned to
>us Admins:
>
>An  error occurred  while processing  file 3661459  from
>[log in to unmask]:
>"Mail has been received for delivery to the POODLE-L list from a user which
>had been served out".

Send the command "free [log in to unmask]" to the Listserv that hosts
your list. The problem is that the subscriber sent too many consecutive
invalid commands to that Listserver. This is typical of an errant vacation
message, but it can be caused by other events too.