alt Hacker NewsNot easy at all.
Think about integrating calendars, corporate contacts (from AD), handling RSVP replies said mx server receives and updating the calendar server, securely deal with modern auth (+ legacy krb5 auth, yuk). It's a huge hassle and everything except Exchange only handles 80% of this.
Modern expectations now want: web clients (OWA), todo lists, integrated storage (SP/OneDrive), and push notifications to any phone from any vendor.
So yeah, the only on prem solution is still Exchange.
Replies
if you dont mind asking, what dont you like about kerberos? I personally like it quite with certs / hardware token
to be honest, most things you list can be setup with some research. The only one I am not sure about is integrated storage, but then I am also not entirely sure what that even is supposed to mean exactly
I don't think these things are as important as you think.
RSVP for example. Nobody read or cares who and what people reply. In the last 4 companies I worked for (including one in Switzerland), nobody cared if I accepted or confirmed my attendance to the meeting and would try to call me/force me into a meeting even when my status showed I was on another shsring my screen. And nobody seems to respond nowadays nor check calendars for availability and avoiding conflicts.