Re: (DMARC) How a whitelist would work, was Why mailing lists

[Miles Fidelman <[e-mail]>]

John R Levine wrote:
>> 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.
>
The big buys already have whitelists - and an awful lot of our mailing 
lists are already on them.  (Every 6 months or so, some large site 
blocks our IP, I go to their postmaster site, fill in the form, and 
every is copacetic again).  The folks who are honoring DMARC p=reject 
are clearly ignoring whitelists that THEY ALREADY HAVE!

Miles Fidelman

-- 
In theory, there is no difference between theory and practice.
In practice, there is.   .... Yogi Berra