Guest email replies don't reopen closed conversations

Description: When a guest replies by email to a conversation you've already closed, the reply is saved to the conversation, but the conversation stays in Closed and isn't marked unread. If your team closes conversations after responding to clear the queue, a guest's follow-up can go unnoticed unless someone checks Closed by hand.

Expected behavior A new email from the guest should move the conversation back to All Conversations as unread, the same way Airbnb and PMS messages already do. The conversation's Activity history should also show that it was reopened.

Current workaround Open the Closed folder and turn on the Needs Reply filter. It shows closed conversations where the guest wrote last, newest first. Turn the filter off afterward, because it stays on when you switch folders.