One of our teachers invited different persons to a course.
I'm an admin, and I've seen how she did it => correct.
But, not one single person invited received an invitation e-mail.
Other teachers, who did exactly the same, succeeded in inviting persons.
What can be the issue?
Good morning, bart delahaye ! I had this happen once to me; the issue was I hadn't published the course yet. See if this teacher's course is published.