> A user sent a lot of legit. mail and got
>
> "The LISTSERV network has determined that you have been posting an
> abnormally high amount  of identical  messages to multiple  LISTSERV
> mailing  lists. To ward against a possible spamming  attempt, your posting
> privileges are being withdrawn for the next 48 hours, worldwide. "
>
> Anyway to turn this off earlier than 48 hours?

No. The way to avoid this is to add those lists which need posting of
duplicate messages to a 'super' list. This has the added benefit of only
posting these messages to one address.