i've read the description for SA's "use_newest_received_spf_header" @ http://spamassassin.apache.org/full/3.2.x/doc/Mail_SpamAssassin_Plugin_SPF.html.
i understand i can toggle the option, "Use this option to start with the newest (top most) Received-SPF headers, working downwards until results are successfully parsed." under what specific circumstances would this be a better option? an example would be much appreciated. thanks.
