Mark as Unread

As teams grow the inbox gets viewed by multiple people throughout the day that all have their own taskings and are best able to handle certain types of guest communications. A mark as unread like airbnb has would help alleviate excessive messaging between teammates and mixed up communication as the teammate can just look for their relevant messages in hospitable.
This is also an issue when opening up a message from a phone notification as it automatically marks as read.
Some sort of task assignment from the messaging would also be incredibly useful.