On Sat, Mar 23, 2013 at 11:31 AM, Benny Pedersen <m...@junc.eu> wrote: > Ejaz skrev den 2013-03-23 11:49: > >> How do I configure my postfix not to accept the emails which sent on >> invalid address?, since morning we have been noticed that there huge >> spam dictionary attack on our server, all originated emails are from >> random IPs and random from address to the invalid recipient. > > > pretty common, just make sure not to use catch-all in postfix, then logs and > count what ips abuse most or is not have there own rir listning (dynamic ips > should be smtp auth only) > > >> Thanks in advance for you kind help in regards to the control such spam >> emails. > > > are you missing http://www.hardwarefreak.com/fqrdns.pcre ? :)
very interesting link, as I understand my postfix is not prepared for pcre thus I won't be able to use it, right? $ /usr/sbin/postconf -m btree cidr environ hash internal ldap nis proxy regexp static tcp unix LU
