How can I ask IPTABLES to drop a packet based upon its content

[Deshwal Chand <CDD@xxxxxxxxxxxxx>]

Title: How can I ask IPTABLES to drop a packet based upon its content

Hi,

I am running IPTABLES on Redhat 7.2 box. We are running a mail server behind this firewall. We receive lot of spam e-mails. Instead of investing into the anti-spam s/w, I want to configure the IPTABLES to read the contents on the packets and drop them based upon the filter defined.

Any help ......

Regards,

Chand