Are you saying that gmail and yahoo have to know about my lists.sandelman.ca
before I can have gmail/yahoo members on my little local list?
Yeah. It's clear from the DMARC summary reports I'm getting that the big
mail systems already have a pretty good idea of where the mailing lists
are, so it should be possible to pre-seed a whitelist so most people
won't have to explicitly apply unless something screws up.
I agree this idea is not great, but all the plausible alternatives seem
even less great.
Regards,
John Levine, johnl(_at_)taugh(_dot_)com, Taughannock Networks, Trumansburg NY
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