Due to a significant backlog of undeliverable mail caused by Microsoft's mail systems being unavailable today, mail sent from Schoolbox to receipients using Microsoft or other providers may be delayed, or in some circumstances become undeliverable.
To mitigate the impact of this, Schoolbox has increased our mail delivery service capacity to allow a larger volume of mail to be queued for delivery. We will continue to monitor the performance of our mail delivery service and provide an update when service returns to normal.