Not sure, if I selected the right category, but I’ll raise it here anyways.
Right now, I am in need to retire an old server, running a BSD Variant that right now provides Email (Dovecot and Postfix), CalDAV and CardDAV, both for my private use as well as for a few projects I am involved with and a few family members.
Since both hardware and software are rather dated, some people really want a web interface and I am thinking about some nicer features, I am wondering what my alternatives could be. I am pretty certain on going Linux (this is the only Server I have running that’s not Linux).
I have an eye on Kopano, but also OpenXChange, but I am wondering if I might miss one that’s a little lighter on the administration effort.
For privacy and cost reasons ( I personally have 6 Email addresses on there for 6 domains where I want to keep my inboxes separated, I think in total its about 50 inboxes) I don’t want to use a service like GMAIL or Office365. I also don’t really want a per inbox licence because part of the appeal is just creating an inbox whenever I feel like I need one for something, maybe just toying around)
Any suggestions? Or any good reasons for or against my current two options?