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