We are a hospital and have a linux dovecot mail server, a caldav server.
The frontends are either Mozilla Thunderbird on Windows or SOGo on webbrowser frontend.
We would like to fine-tune the system, as we have several smaller and bigger issues, like:
-Calendar entries get lost
-Confirmations on reminders aren't accepted so reminders come back several times
-Auto-Complete in Thunderbird is bizarre, possibility to change?