fischetti.com uses real-time blackhole lists and other sendmail configs to control spam.
Mail from Brazil, China, Russia and Argentina is blocked.
Servers listed at: bl.spamcop.net, cbl.abuseat.org, zen.spamhaus.org, bogusmx.rfc-ignorant.org and bl.fischetti.com are blocked.
Finally, servers without a correct reverse DNS entry are blocked.
©2011 fischetti.com