OwnCloud does not sent out notifications when a calendar event is created from a user account. Notifications work only for admin.
Steps to reproduce
1.Login as user
2.Create event in a shared calendar
The atendees should receive an email notification about the event.
ownCloud version (see ownCloud admin page): ownCloud 9.1.2
Updated from an older ownCloud or fresh install: fresh install
Special configuration (external storage, external authentication, reverse proxy, server-side-encryption):
ownCloud log (data/owncloud.log)
Please paste possible errors in the following code block, see https://central.owncloud.org/t/how-to-find-webserver-or-oc-logfile-enable-php-logfile/808 for more info
Integrity status for oC9+
Login as admin user into your ownCloud and access http://example.com/index.php/settings/integrity/failed paste the results here.