Hello to all.
I want to share how i reduce spam in my box.
Maybe not perfect solution but for work :)
Always make backup and use it at your own risk !
Tested on CentOS 5
Install Greylist:
# rpm -Uvh http://dl.atrpms.net/el5-i386/atrpms/stable/greylistd-0.8.3.2-8.0.el5.noarch.rpm
Now you...