On Wed, Nov 20, 2024, at 09:13, Dave Crocker wrote: > On 11/19/2024 2:09 PM, Bron Gondwana wrote: > > the DKIM "brand" is already somewhat known, and this new thing will > > serve the same purpose for them - and require them to do the same > > thing (set up a handful of DNS entries). > > > However... > > It is a different and incompatible protocol. It is not DKIM. > > DMARC 'uses bits of' DKIM. It is not DKIM either. > > And since it runs in parallel to actual DKIM, it /really/ isn't DKIM.
I'm probably stepping my foot in a steaming pile of can of worms here... but OAuth2 is likewise not OAuth1, it's a different and incompatible protocol - and the naming was chosen because "it does the same thing and you can substitute it in". DKIM2 is designed to replace DKIM despite being a different protocol that does more than DKIM does. It's supposed to entirely replace DKIM eventually. DMARC rides on top of DKIM - but you can't remove DKIM and still have DMARC working at full fidelity. You can remove DKIM and have DKIM2 keep running with full fidelity once everyone is running DKIM2. Sure it's not cross-compatible in a "sustitutable lego piece" type of way. Hence not being just called "DKIMbis". Bron. -- Bron Gondwana, CEO, Fastmail Pty Ltd br...@fastmailteam.com
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