Two part article on mail server (network level) spam protection written by an expert. Although the focus is qmail, I believe exim uses the same unix philosophy of small piped programs as qmail. We should be able to adapt something like this to Indy when we start providing email service for ourselves and our clients. http://linux.oreillynet.com/pub/a/linux/2003/06/26/blocklist.html http://linux.oreillynet.com/pub/a/linux/2003/07/24/blocklist.html Tom To post to the list send email to <frgeek-michiana@xxxxxxxxxxxxxx> You may unsubscribe or change your list settings by going to the list website at <//www.freelists.org/webpage/frgeek-michiana>