Patreon-like Inbox for Member Messages?

It would be amazing to be able to communicate with individual members using something like an inbox rather than relying on email. Having this somehow integrated with Ghost would greatly consolidate the member experience.

That being said, I know this is likely to remain out of the scope of native Ghost features, but wondering if there’s an integration with some service that might be possible? If not now at some point? Would love to hear any ideas on this :)

We currently just use email, but to know if the person emailing is a member or not requires cross-referencing their email with the member list. That’s just one example of how much this would improve the overall member admin experience.