Note: Microsoft retired the MS-203: Microsoft 365 Messaging exam on December 31, 2023. It is no longer possible to register for or take this exam, and it is not part of Microsoft’s current certification catalog. The practice questions on this page remain available for historical study and for anyone reviewing Exchange Online / Microsoft 365 messaging administration concepts, but they should not be used to prepare for an upcoming Microsoft exam registration.
When it was active, MS-203 measured a candidate’s ability to manage Microsoft Exchange Online settings and resources, plan and manage the mail transport architecture, and secure the messaging environment, as part of the requirements for the Microsoft 365 Certified: Messaging Administrator Associate credential.
Prepare for the MS-203 - Microsoft 365 Messaging exam with our free practice test modules. Each quiz covers key topics to help you pass on your first try.