I have raised a support ticket with Manageengine but looking to see if anyone else having issues with picking up emails from their Office365 mailboxes. We have 3 instances all with unique mailboxes in Office365 which have stopped working at the same time (approx 1030 4/4/22)

It could be an issue with Exchange in our tenant so also following that help. There is an odd advisory about disabling Basic Auth but our instances uses the Office365 moden Auth integration so this shouldn't be an issue.

Would be interested to know if anyone also has same issue.