DSPAM rpm for RHEL/CentOS

Hi, I need to implement an effective antispam solution. After Googling for a while I selected DSPAM, but cannot find the software already packaged in rpm format. I'd like to contribute this package to EPEL. Is there anyone on this list workin' on it? Can someone point me to some kind of documentation and example spec files for a similar software so I can start to work on it? Any help will be appreciated. Thanks Simo