It would be nice feature if the administrator would be able to send e-mail notifications to all of users or to groups through admin interface.
Thanks for your answer. As far as I understand, unfortunately, this application can’t send notifications via e-mail. It’s send announces inside Nextcloud. User have to click the appropriate App icon to see this announces.
It also generates notifications in the notifications API, which are then displayed by the desktop sync client.
I don’t think you will find something close to what you want