Hello, I am working to minimize malformed mail that can be sent from my servers.
Example: postfix-out/cleanup[1191]: BE1DF49336: warning: header From: "Juan Bautista PITTIER" <jbpitt...@yahoo.com.ar> from l ocalhost[127.0.0.1]; from=<kcuzz...@gmail.com> to=<luzpiazz...@gmail.com> proto=ESMTP helo=<smarthost01-ded.dattaweb.com> The user is using as From Header "gmail.com" which is very wrong. I am about to use the spf check for these cases, through the "policy-spf" component. Do they recommend another way to block forgery from?
