On 8/18/2011 4:38 PM, John R Pierce wrote: > On 08/18/11 12:56 PM, Rudi Ahlers wrote: >> BUT, if Steve changes his IP to circumvent the block, then his new IP >> should be blocked as well. > > how would you know this? If he is using pop, imap, authenticated smtp, web services with a logged in session, ssh, etc., the applications know the user and may be logging it. But there is nothing central or standard to collate this information, and there are various circumstances that will cause many users to have the same IP source or one user to have several. -- Les Mikesell lesmikesell at gmail.com