Duroty System is the open source Gmail
Duroty is a service of personal feeds, email management, link management and briefly it will also include electronic calendar and server file indexation.
Duroty is addressed to SMEs which need information and knowledge management systems in order to diminish the barrier to the access to information.
It uses simple and advanced message searching systems similar to the ones used by Google webs, but it also allows to search in attached files (word, powerpoint, excel, pdf, html, etc.) in addition to the normal fields such as from, to, subject, body, etc.... read more