MS-203: Microsoft 365 Messaging

MS-203: Microsoft 365 Messaging

This exam measures your ability to accomplish the following technical tasks: manage Microsoft Exchange Online settings and resources; plan and manage the mail transport architecture; and secure the messaging environment.

Candidates for this exam are Microsoft 365 messaging administrators who manage a secure, efficient, and effective email collaboration platform using Microsoft Exchange Online and Microsoft 365.

Messaging administrators plan, configure, and manage recipients, mail flow, threat protection, compliance, and client connectivity.

Messaging administrators collaborate with administrators of other workloads, including security, compliance, identity, and networking, to implement a secure cloud messaging topology that meets the business needs of an enterprise.

Candidates for this exam should have a working knowledge of authentication types, licensing, integration with Microsoft 365 applications, Exchange Management Shell, Microsoft Purview, and Microsoft Azure Active Directory (Azure AD), part of Microsoft Entra.

Microsoft 365 Messaging Exam Summary:


Exam Name Microsoft 365 Certified - Messaging Administrator Associate
Exam Code   MS-203
Exam Price  $165 (USD)
Exam Price  120 mins
Number of Questions  40-60
Passing Score  700 / 1000
Books / Training Course MS-203T00-A: Microsoft 365 Messaging
Sample Questions  Microsoft 365 Messaging Sample Questions
Practice Exam  Microsoft MS-203 Certification Practice Exam

Microsoft MS-203 Exam Syllabus Topics:


Topic Details
Manage Microsoft Exchange Online settings and resources (40-45%)
Manage organizational and client access settings in Exchange Online - Manage a Global Address List (GAL)
- Add or remove an offline address book (OAB)
- Manage address book policies
- Plan and configure organization relationships and individual sharing
- Configure Outlook on the web policies
Manage recipients and resources - Manage user mailboxes
- Manage resource mailboxes
- Manage shared mailboxes
- Create and manage mail contacts and mail users
- Manage groups, including distribution lists, dynamic distribution lists, mail-enabled security groups, and Microsoft 365 groups
- Manage mailbox permissions, including delegation
- Manage mailbox mail flow settings
- Create and manage public folders
Manage Exchange hybrid settings and migration - Configure virtual directories and URLs in a hybrid environment
- Maintain and expand the configuration by using the Hybrid Configuration wizard
- Configure migration endpoints
- Create and manage a cross-tenant migration batch 
Plan and Manage the Mail Transport Architecture (25-30%)
Manage and secure mail flow - Plan and configure connectors
- Plan and implement mail flow rules (transport rules)
- Manage accepted and remote domains
- Configure namespaces, accepted domains, and DNS records, including Exchange Online Protection (EOP)
- Implement email authentication, including Sender Policy Framework (SPF), DomainKeys Identified Mail (DKIM), and Domain-based Message Authentication, and Reporting and Conformance (DMARC)
Troubleshoot mail flow - Configure and manage alert policies
- Trace a message
- Analyze a message trace
- Analyze message headers
- Analyze Non-delivery Reports (NDRs)
- Troubleshoot by using the Microsoft Remote Connectivity Analyzer
Secure the Messaging Environment (25-30%)
Manage role-based permissions in Exchange Online - Plan and manage RBAC roles
- Manage default and custom admin role groups
- Manage user roles
Secure messages by using Microsoft 365 Defender - Configure and manage Anti-phishing policies
- Configure and manage Anti-spam policies
- Configure and manage Anti-malware policies
- Configure and manage Safe Attachments
- Configure and manage Safe Links
- Configure and manage quarantine policies
Manage compliance - Configure Messaging Records Management (MRM) and retention policies for a specific mailbox folder
- Enable and configure archive mailboxes
- Manage inactive mailboxes
- Analyze audit logs
- Manage journal rules
- Manage content search
- Manage standard eDiscovery cases (not including Premium eDiscovery) 

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