We are seeing massive amounts of the following errors pile up in our mail queues. "452 4.5.3 Too many recipients (AS780090)" This happens even when there is o

We are seeing massive amounts of the following errors pile up in our mail queues. "452 4.5.3 Too many recipients (AS780090)" This happens even when there is only 2 or 3 recipients. I think there may be a network issue at MS hosted email. https://lists.ausnog.net/pipermail/ausnog/2023-October/thread.html https://lists.ausnog.net/pipermail/ausnog/2023-October/threa... https://www.reddit.com/r/sysadmin/comments/1755npg/anyone_else_seeing_outlook_mail_delivery_problems/ https://www.reddit.com/r/sysadmin/comments/1755npg/anyone_el...