MS-203T00 Microsoft 365 Messaging

$2,975.00 USD

5 Days


Delivery Methods
Virtual Instructor Led
Private Group

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Course Overview

This course was retired by Microsoft on 12/29/2023

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 persons who are aspiring to be Messaging Administrators in a Microsoft 365 deployment.

Who Should Attend?

The Messaging Administrator plans, deploys, configures, troubleshoots, and secures the messaging infrastructure in a hybrid and cloud enterprise environment. Responsibilities include managing recipients, mailboxes, transport, mail flow, administrative roles, threat protection, compliance, migrations, and client connectivity. To implement a secure hybrid topology that meets the business needs of a modern organization, the Messaging Administrator must collaborate with other workload administrators and the Microsoft 365 enterprise administrator. The Messaging Administrator should have a working knowledge of authentication types, licensing, and integration with Microsoft 365 applications.

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Course Prerequisites

There are no prerequisites for this course.


1 - Manage mail flow

  • Explore mail flow in Microsoft Exchange
  • Manage mail flow in Exchange Server deployments
  • Manage mail flow in Exchange Online deployments
  • Manage mail flow in hybrid Exchange deployments
  • Configure message transport options
  • Configure SMTP domains
  • Configure connectors

2 - Troubleshoot mail flow

  • Troubleshoot SMTP mail flow
  • Troubleshoot shared namespace environments
  • Troubleshoot Transport Layer Security encryption issues
  • Troubleshoot network-based issues
  • Monitor Exchange Online with Microsoft Service Health
  • Troubleshoot with alert policies in Exchange Online

3 - Manage mail flow rules

  • Explore mail flow rules
  • Examine how mail flow rules work
  • Configure mail flow rules

4 - Plan for message security

  • Explore Exchange Online Protection
  • Plan message routing for Exchange Online Protection
  • Examine message hygiene monitoring and reporting
  • Examine Microsoft Purview Message Encryption

5 - Manage anti-malware and anti-spam policies

  • Examine message headers and spam confidence levels
  • Examine anti-spam and anti-malware protection
  • Manage anti-spam protection
  • Manage anti-malware protection
  • Examine advanced anti-spam features
  • Manage spoofing protection
  • Manage phishing protection
  • Configure transport rules

6 - Explore threat protection in Microsoft 365 Defender

  • Examine threat protection in Microsoft 365 Defender
  • Explore using Configuration Analyzer to improve security policies
  • Examine how Safe Attachments protect against malicious attachments
  • Examine how Safe Links protects against malicious URLs
  • Manage spoof intelligence
  • Manage anti-phishing policies
  • Manage the Tenant Allow/Block list in Microsoft 365 Defender
  • Examine Attack simulation in Microsoft 365 Defender

7 - Explore messaging compliance in Microsoft 365

  • Examine message policy and compliance
  • Explore the Microsoft 365 permission model
  • Configure retention policies
  • Run a message trace
  • Explore sensitivity labels
  • Manage inactive mailboxes

8 - Explore messaging compliance in Exchange

  • Examine In-Place and Litigation holds
  • Configure Messaging Records Management
  • Analyze message tracking

9 - Manage Exchange Online archiving and auditing

  • Plan and implement in-place archiving
  • Explore journaling in Exchange
  • Manage administrator and mailbox auditing

10 - Manage Content Search

  • Design content searches
  • Manage content searches
  • Manage eDiscovery cases

11 - Manage authentication for messaging

  • Examine password policy options
  • Explore self-service password management
  • Implement multifactor authentication for Exchange
  • Plan password policies
  • Explore modern authentication
  • Configure conditional access policies

12 - Configure organizational settings

  • Configure workload policies and throttling
  • Configure quota configurations
  • Deploy Microsoft 365 add-ins

13 - Configure organizational sharing

  • Examine Exchange federated delegation features
  • Examine Exchange federation sharing components
  • Plan for federation trusts and certificates
  • Implement organization relationships
  • Implement sharing policies

14 - Manage administrator roles

  • Explore Role-Based Access Control
  • Examine management role groups
  • Examine built-in management role groups
  • Implement admin roles for management role assignments
  • Troubleshoot admin roles
  • Explore Privileged Identity Management
  • Manage role groups in Exchange Online

15 - Manage user roles

  • Implement user roles for role assignment policies
  • Implement management role assignment policies
  • Create new roles, role assignments, and scopes

16 - Analyze role-based permissions

  • Explore the use of split permissions
  • Explore the use of multiple-forest permissions
  • Explore the differences in permissions

17 - Explore the different types of Exchange recipients

  • Explore recipient types
  • Explore resource mailboxes
  • Explore shared mailboxes
  • Explore linked mailboxes
  • Explore groups
  • Explore public folders

18 - Create and manage Exchange recipients

  • Manage mailbox settings
  • Manage resource mailboxes
  • Manage shared mailboxes
  • Create and manage mail contacts and mail users
  • Manage permissions for recipients
  • Create and manage groups
  • Create and manage public folders

19 - Manage email addresses, lists, and resources

  • Explore address lists
  • Create and manage address lists
  • Examine address book policies
  • Configure offline address books
  • Manage permissions for recipients
  • Examine email address policies

20 - Explore Exchange hybrid deployment requirements

  • Examine the connection options for Exchange to Microsoft 365
  • Explore the components of a hybrid deployment
  • Explore Microsoft Entra Connect
  • Examine the Microsoft 365 identity options for a hybrid Exchange deployment
  • Compare Exchange delegated federation and Open Authentication

21 - Plan and configure a hybrid deployment using the Hybrid Configuration Wizard

  • Plan for Exchange hybrid configuration
  • Examine Organization Configuration Transfer
  • Examine Exchange Modern Hybrid and the Hybrid Agent
  • Review mail flow options for a hybrid deployment
  • Prepare to run the Hybrid Configuration Wizard
  • Examine hybrid deployment best practices

22 - Plan mailbox migrations

  • Explore migration options to Exchange Online
  • Determine which migration option to use
  • Update DNS during a Microsoft 365 migration

23 - Run mailbox migrations

  • Plan an IMAP migration
  • Run an IMAP migration
  • Move mailboxes using an IMAP migration
  • Plan a cross-tenant migration
  • Prepare source objects for a cross-tenant migration

24 - Troubleshoot hybrid deployments

  • Troubleshoot directory synchronization
  • Troubleshoot pass-through authentication and single sign-on
  • Troubleshoot transport with Exchange Online
  • Troubleshoot client access in coexistence
  • Troubleshoot the Mailbox Replication service

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