Microsoft 365 Certified Messaging Administrator Associate


Microsoft 365 Certified

Messaging Administrator Associate

Microsoft 365 Messaging Administrators deploy, configure, manage, and monitor messaging infrastructure, permissions, client access, mail protection, and mail flow in both on-premises, hybrid, and cloud enterprise environments.

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Recommended approach

Step 1: Review the skills and knowledge required to certify.

Step 2: Train for certification exams.*

  • Find classroom and online training
  • Explore more training on Microsoft Learn

Step 3: Take a practice exam.

  • Microsoft Official Practice Tests are coming soon

Step 4: Schedule your exam and get certified.

  • Schedule to take Exam MS-200
  • Schedule to take Exam MS-201
  • Schedule to take Exam MS-202

*Classroom and online training options will be added when available.

Required exams

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Exam MS-200: Planning and Configuring a Messaging Platform


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Exam MS-201: Implementing a Hybrid and Secure Messaging Platform


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Exam MS-202: Microsoft 365 Messaging Administrator Certification Transition

This exam is intended only for candidates who have taken Exam 70-345: Designing and Deploying Microsoft Exchange Server 2016. If you have not taken Exam 345, you will not earn a certification by taking this exam. MS-202 retires on July 31, 2019.


Skills and knowledge

Candidates who earn a Messaging Administrator certification are verified by Microsoft to have the following skills and knowledge.

  • Manage modern messaging infrastructure
  • Manage mail flow topology
  • Manage recipients and devices
  • Plan and implement a hybrid configuration and migration
  • Secure the messaging environment
  • Manage organizational settings
Manage databases

  • plan mailbox database requirements
  • create mailbox databases
  • configure mailbox databases
  • troubleshoot mailbox databases
Manage Database Availability Groups (DAGs)

  • plan DAG settings and members
  • create a DAG
  • manage DAG members
  • deploy and manage site resilience
  • test a database and datacenter failover scenario
  • troubleshoot DAG problems
  • evaluate Exchange services health
Manage and implement client access

  • plan namespaces
  • plan high availability for client access
  • configure virtual directories and URLs
  • configure client access policies
  • configure global Outlook Web App (OWA) policies
  • configure Autodiscover for Exchange
  • troubleshoot client access connectivity problems
  • manage Exchange certificates lifecycle
Manage disaster recovery

  • plan backup and recovery strategy
  • implement and perform backups
  • restore servers, databases, and mailboxes
Manage messaging infrastructure lifecycle

  • plan Exchange Server installation
  • prepare Active Directory (AD) for Exchange
  • install and update Exchange services