Separation of messages from/to guests

For each booking I send about 6 automated messages spaced out between the day of booking and the day of checkin. Regardless of whether or not guests reply, these SENT messages end up appearing in the INBOX. In other words the INBOX is serving both as a SENT repository and an INBOX. This means I have to scroll through the ALL the messages in the INBOX just to find messages actually sent to me by GUESTS. That's a waste of time, and makes it easier to miss a GUEST message. Please create a SENTBOX only use the INBOX for messages from the guest