by Jizu Sun.
Me, too.
My SMTP is working, e.g. when manually enrolled into Moodle, students get registration email letter successfully, and I use 'Event Reminders' plugin to notify them coming events with email.
But, when I finished grading assignment, they got no email notification.
I'm using Moodle 3.1 dev (master), and I referenced this guide:
but found no explicit result.
Can you give me some hint?