I'm trying to initiate an outbound email using /api/v2/conversations/emails

But it says it requires a user context. I read on a thread that all conversations APIs require user context - is that correct? This particular usecase doesn't seem like a user-context situation where we initiate an outbound email to a queue.

If I am limited to user context, my follow-up question is this: if I'm calling a conversation API from a CRM that has implemented SSO, will it have user context? Or is there something more to be done?