Exchange Online Error – MapiExceptionShutoffQuotaExceeded

Error platform

Office 365 (Exchange Online)/Exchange Server

Full error text

Error number (if any)

554 5.2.2

The cause

The recipient of this email has his mailbox reached the maximum quota.

How to fix?

Increase the … Read the rest “Exchange Online Error – MapiExceptionShutoffQuotaExceeded”