LeanMail

LeanMail is a group of customizable solutions for managing email that combines best in class practices with proprietary add-ins that seamlessly bolt on to Microsoft Outlook. Each LeanMail solution, or module, is independent of the others but can be combined to satisfy your specific email management needs.
Among the challenges that LeanMail solves are high volume, prioritization, planning, keeping track, filing and finding and shared inboxes.