Yablo

Yablo is a fully integrated Outlook add-in for shared mailboxes on your desktop, the web or on your mobile phone. Every email will have an owner and a status assigned to it. You can also use tags or labels to structure your shared emails. Also, no more internal email spam because you can easily chat about email conversations with your colleagues from within Outlook. Collaborate like a pro on your emails in your personal and shared mailboxes.