MS-203T00A – Microsoft 365 Messaging


About this course

This course examines the key elements of Microsoft 365 messaging administration, including message transport and mail flow, messaging security, hygiene, and compliance, messaging infrastructure, and hybrid
messaging. This course is designed for IT Professionals who deploy and manage the messaging infrastructure for Microsoft 365 in their organization.

Course Outline


SKU: MS-203T00A Categories: , , Tag:


Audience Profile

The Messaging Administrator deploys, configures, manages, and
troubleshoots recipients, permissions, mail protection, mail flow, and public
folders in both on-premises and cloud enterprise environments.
Responsibilities include managing message hygiene, messaging
infrastructure, and hybrid configuration and migration. To implement a
secure hybrid topology that meets the business needs of a modern
organization, the Messaging Administrator must collaborate with the
Security Administrator and Microsoft 365 Enterprise Administrator. The
Messaging Administrator should have a working knowledge of
authentication types, licensing, and integration with Microsoft 365

At Course Completion

After completing this course, students will be able to:

  • Configure and manage the transport pipeline
  • Manage and troubleshoot mail flow and transport issues
  • Manage message hygiene and compliance
  • Manage authentication for messaging
  • Configure organizational settings and sharing
  • Manage mobile devices
  • Manage role-based permissions
  • Create and manage recipient objects and resources
  • Plan, implement, and troubleshoot public folders
  • Plan a hybrid environment
  • Perform mailbox migrations
  • Deploy and troubleshoot a hybrid environment.


This course is designed for persons who are aspiring to the Microsoft 365
Messaging Administrator role.

Course Outline



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