Email allows people to communicate across an organization (and with customers and suppliers), but it was not designed to enhance work management. First, emails are not project-specific: many people are accustomed to group emails by project manually. Also, checking and answering individual work emails as they come in throughout the day is one of the most time-consuming activities at work; inbox overload happens easily, with overlooked announcements and unclear to-dos needing to be manually tracked and organised.