[garaetjjte]

Technically, DKIM probably shouldn't take away deniability. But to be fair, this discussion doesn't exist in vacuum. Requesting that Google publish private keys is inherently politically loaded, given recent events. (and it's was neither goal or anti-goal in DKIM design, so it's not that there is mistake in protocol or something).

If some provider decides to implement this proposal, I don't think they should do it retroactively and publish old keys. It would be just inviting additional political shitstorm.