One overview per must-read: confirmed, open, overdue. Reminders go out from that same screen — no email round.
Every must-read in Oanax has its own overview: who has confirmed, who still has it open and whose deadline has passed. The overview is live — there is nothing to keep up to date.
You remind the people who are behind from that same screen. No separate email round, no list next to the system.
And because assignment happens by role, the overview is still right tomorrow: a new colleague with that role appears in it automatically.