All requests come into my company to a single email where multiple users can review them and follow up. We need a way to let the other people in the department see that a particular email has been dealt with - color coding, removal to a separate folder, etc. Is anyone aware of a way I can mark/move etc a message so others will see it has been addressed? Or another tool in Office that could help to accomplish it?

Our hope is to resolve this within Outlook - otherwise we will likely need to create a shared live list and each user will be scrolling/searching the list for every email - and the list needs constant updating after each email has been reviewed. This searching and updating of a separate list are many more steps then just clicking a setting to show a message has been resolved to all recipients. I hope that makes snese; let me know if you need any more info.