Exim: ftp://ftp.exim.org/pub/filter/ Подключается через: message_filter = /etc/exim/system_filter.exim Procmail: ftp://ftp.rubyriver.com/pub/jhardin/antispam/html-trap.procmail Postfix: http://www.mrbill.net/postfix/ http://www.opennet.me/base/net/postfix_filter.txt.html