When I am processing an email in my inbox, I want to complete it and its related messages. Currently, Outlook 2007 only gives you the “Related” button and it works very slowly and poorly because Outlook needs to search the related emails in all folders.

• Add a checkbox in Tools | Options “Show number of related messages left and their subfolders”
• Add a red bar to alert “There are N related messages left and their subfolders”

Figure: Find related message