I'm curious if this affects FastMail users in US since they're based out of Australia.
FastMail seems to have automated default address collection, backup of drafts & deleted email, ability to archive email. With no at rest encryption this could be possibly used for data mining too.
This new law is the last straw. So far they have not bothered to address the issue. Till few years back FM used to be awesome but feel they have not moved with time.