rejecting an invalid return path

Hi list Do you know whether there is a possibility to reject invalid return paths in postfix? The problem is, that we get spam with a header-line like the following and would like to reject those messages: Return-Path: AFAIK the return-path above is invalid, as there is only the following forma

Re: rejecting an invalid return path

Hi Stan Hoeppner wrote: >> The problem is, that we get spam with a header-line like the following >> and would like to reject those messages: >> Return-Path: > > http://www.postfix.org/BACKSCATTER_README.html Already read this and I also would know how to do this. But I thought maybe this is c