we all just want a clean inbox
Ah, but we also want to retain the ability to receive
legit mail from anyone, even people we've never got
mail from before. (I have content on my personal
website about puppetry, and about constructing
puppet stages. I receive email from arbitrary people
who found it in a web search, and wanted additional
info about a particular facet of it, on a semi-regular
basis. I don't want to make these people jump through
extra hoops (web-based "mail" forms and similar) to
contact me. Also I maintain a usenet FAQ (though I
get fewer questions about that since it's an obscure
one). Also, it seems wrong to penalize legitimate
people who want to contact me, because of the abuses
of a few utter losers.
Still, if it was relied on strictly enough by a significant enough portion of the internet, the pressure to get your RMX RR right or perish would be significant. Even if only the large mail hubs (Hotmail, Yahoo and the many other freemailers) which are frequently used as forged senders implemented this (on both directions, their own RMX RR as well as requiring them from senders) that would be a step forward.
You're daydreaming. The chances of a major ISP of any
kind agreeing to reject possibly legitimate incomming
mail because it doesn't comply with some new standard
are roughly the same as the chances of Microsoft
releasing the complete source code for the current
version of Office under the BSD license, or
Macromedia producing a useful piece of software.
$;=sub{$/};@;=map{my($a,$b)=($_,$;);$;=sub{$a.$b->()}}
split//,".rekcah lreP rehtona tsuJ";$\=$ ;->();print$/
