These are the offical EGroupware packages from EGroupware project (www.egroupware.org).
EGroupware is a free enterprise ready groupware software for your network. It enables you to manage contacts, appointments, todos and many more for your whole business.
EGroupware is a groupware server. It comes with a native web-interface which allowes to access your data from any platform all over the planet. Moreover you also have the choice to access EGroupware server with your favorite groupware client (Kontact, Evolution, Outlook) and also with your smartphone via CalDAV or active sync.
EGroupware is international. At the time, it supports more than 25 languages including rtl support.
EGroupware is platform independent. The server runs on Linux, Mac, Windows and many more other operating systems. On the client side, all you need is a browser such as Chrome, Firefox, Safari, Internet Explorer and many more.