I only have very little zimbra experience. I tried the online demo and read the admin manual and some other things.
I am looking for a groupware tool to support the collaboration of a community (e.g. project). So my users don't need to manage their personal mail, addresses and calendar with zimbra. I need a place with a shared addressbook, a shared calender and shared documents to organise this community. The people, who are part of this community do belong to different enterprises, I am not looking for an internal mail solution or something.
My impressions so far is, that zimbra is a Mail-Server-Client in the first place. Is it possible, what do you think about using zimbra with this personal mail and other personal items like addressbook an calendar disabled?

Thanks Frank