Am 30.06.2018 um 07:13 schrieb Mihai Badici: > I can confirm you can use dovecot ( instead of cyrus) but is not trivial > and I didn't know much about the compatibility for shared calendars. Cyrus IMAPd provides exactly that, easily ;-) https://www.cyrusimap.org/imap/download/installation/manage-dav.html Alexander