Jose Luis Faria put forth on 10/20/2010 11:20 AM: > Hello people, > > I am using now qmail in cluster with LDAP + Interscan Messaging Security > Suite from Trendmicro. > > I need to develop a new solution with: > - postfix > - dovecot > - anti-spam > - anti-malware. > > I am thankful any help or suggestion for anti-spam and anti-malware. > > Thanks in advance!
This will kill a huge amount of bot spam without dnsbl queries or greylisting, both of which can be resource hogs and add serious latency: http://www.hardwarefreak.com/fqrdns.pcre Use the "everything under smtpd_recipient_restrictions" style of Postfix main.cf: /etc/postfix/main.cf smtpd_recipient_restrictions permit_mynetworks permit_sasl_authenticated reject_unauth_destination ... ... check_client_access pcre:/etc/postfix/fqrdns.pcre ... ... Ask for assistance on the Postfix users list: postfix-us...@postfix.org You'll get more expert advice than you will know what to do with. ;) -- Stan
