I would like to be able to send email from a connected team email address to that same email address without it going to spam. Based on this documenation, it is the expected behavior and can't be modified.
I have a use case where my clients fill out a non-HubSpot form, which sends them and the shared team inbox a copy. It is sent from that same email address (as that is where we'd like follow up emails from the client to go).