Are any of the big email tools planning to add support for ActivityPub? They already have your corp domain so it feels natural. For example, I could see a futur

Are any of the big email tools planning to add support for ActivityPub? They already have your corp domain so it feels natural. For example, I could see a future where MS Exchange has the ability to federate with Mastodon and optionally enable/disable employees through ActiveDirectory, etc.