On 4/29/2014 6:29 AM, Mikael Abrahamsson wrote:
So... just because this is a hard problem to solve doesn't mean it's a
good idea to just gloss over it and say "screw it" for mailing lists.
A counter-argument is the classic "Don't let perfect be the enemy of
good". DMARC works well for a very popular -- albeit very constrained
-- scenario.
For any mechanism, there is always the possibility that someone will
apply it for scenarios beyond what was originally envisioned. Often
that is a large benefit. Often is not always.
The distinctive issue now is that that extension is being done by very
large players. The phrase "Too big to ignore" has been rattling around
in my brain for the last few weeks...
d/
--
Dave Crocker
Brandenburg InternetWorking
bbiw.net