dabbit is an email and productivity client built around one question: what in here actually needs me? Mail is grouped into contexts rather than folders, and every context lands in one of three views: Needs you, Tracking, or Later. The idea is that the inbox stops being a list of everything and becomes a list of things to do.
Sources can be a live mailbox or an imported archive, so the old stuff gets the same treatment as the new.
The name is recycled from my old IRC client. Some names are too good to retire.