There is/was a piece of software written by the author of the DSPAM program called RABL with a server and a client piece. I think that it would do what you need.
Ken On Wed, Oct 22, 2008 at 10:12:41AM -0400, Joey wrote: > Hello All, > > > Does anyone have a good reference of how to create my own RBL so I can load > IP's into it and check against it from postfix? > > > > Thanks! > > > > >