Softaculous EGroupWare EGroupware is the leading Online Collaboration Tool and the top choice for big enterprises, small businesses and teams within and across organizations all over the globe.
EGroupWare is a free open source groupware software. Its primary functions allow users to manage contacts, appointments, projects and to-do lists.

EGroupWare is released under the GNU GENERAL PUBLIC LICENSE.

http://www.egroupware.org/ 

Demo : https://www.softaculous.com/demos/EGroupware 

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