Which parts of iMessage aren't E2EE?

[lepras]

I have switched on ADP, so message body is safe ig?

Which metadata is available to apple?

@jonah recently did a video on the key verification so he may have some context?

[jonah (Jonah Aragon)]

As far as I’m aware, iMessage doesn’t encrypt any metadata.

Apple Logs Your iMessage Contacts — and May Share Them With Police