Just discovered Zimbra and it looks totally sweet! After experimenting with Scalix Community Edition for a week, Zimbra looks like paradise with AJAX UI, SpamAssassin, ClamAV and iCal support!
Just three questions before I started moving our companies' server over to Zimbra (I am the MD so I can )
a.) Will Zimbra always be open source?
b.) What is the release schedule/version numbering?
c.) Does it work with Debian/CentOS?
Managing Director - EvolutionConsultancy