An admin should be able to send e-mail to selected users

[Stefanie Berger]

In order to comply with the DSVGO users have to be regularly deleted, if they have been inactive for more than a year. Before they should be informed by e-mail (including how they can prevent the deletion).
An Admin is able to delete, but not to inform a set of selected users (like in moodle).

[Kristina Hoeppner (kris-hoeppner)]

Currently, an admin can send messages to multiple people. However, everyone would see who'd also received that message, which would not comply with privacy (DSVGO above is the Germany data privacy regulation).