Millions of people use some form of Webmail for their email needs. Web-based email applications include GMail and Yahoo Mail, as well as applications to access mail on hosted servers, such as Horde ...

If you roll way back through the history of open source webmail projects, you’ll find Horde, a groupware web application. First released in 1998 on Freshmeat, it gained some notoriety in early 2012 ...