eM Client is a Windows based e-mail client for sending and receiving e-mails, managing calendars, contacts and tasks. It is being developed as a user friendly alternative to existing e-mail clients and Calendar solutions (MS Outlook, Thunderbird, The Bat!). E&S Software Ltd. is a young London based software company with zest to beat MS Outlook to the ground. We evaluate our previous experiences with both e-mails and Calendaring software to create a full-featured, but easy-to-use e-mail Client.