> Il 06/10/2020 01:57 Jesse Thompson <[email protected]> 
> ha scritto:
> 
> e.g. I find it hard to imagine that an ISP would have the willingness to 
> exempt a boutique MLM for all of their customers, so ARC, in and of itself, 
> doesn't really help MLMs move away from From munging.  Does it make sense to 
> suggest that in order for ARC to succeed, then ISPs need to offer a way for 
> their customers to define their trusted intermediaries?  What if the ISP 
> chooses not to offer that?  Do they "support ARC" in a meaningful way?

>From a policy standpoint, it is troubling to imagine that each email system 
>would define their own list of trusted ARC intermediaries. This is a recipe 
>for centralization and oligopoly, as most people would just create a shortlist 
>of a few well known big intermediaries, and any smaller entity trying to 
>compete with them (including non-profit operations, community servers, 
>self-hosted mailing lists etc) would be at a serious disadvantage. There is 
>also the problem of keeping these lists up to date once installed. It would be 
>much better if there were a few professional/community efforts to build 
>reliable and complete lists of good and bad ARC intermediaries, like for spam.

-- 
Vittorio Bertola | Head of Policy & Innovation, Open-Xchange
[email protected] 
Office @ Via Treviso 12, 10144 Torino, Italy

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