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Planning and managing the mail architecture (20-25%)

The following will be discussed in this section:

  • Create and configure connectors and route mail to and receive mail from recipients outside of your organization, a partner through a secure channel, or a message-processing appliance.
  • Analyze a message trace to troubleshoot and track the health of their organization's mail flow
  • Implementing iSCSI for Mailbox Database Storage
  • Considerations for Databases and Logs
  • Configure connectors between tenants to manage mail traffic between Office servers and tenants
  • Validate inbound and outbound mail flow
  • Analyze message headers to scan all incoming messages for spam, malware, and other threats
  • Monitor Mail Flow
  • Analyze Non-Deliverable Reports (NDRs) for an error code that indicates why your email wasn't delivered, solutions to help you get your email delivered, a link to more help on the web, and technical details
  • Working with Microsoft Exchange Databases
  • Manage transport rules mail flow rules in Exchange Online to look for specific conditions on messages that pass through your organization and take action on them.
  • Trace a message via a delivery report feature in Microsoft Exchange Server 2016 which you can use to track delivery information about messages sent by and received from specific user mailboxes
  • Manage hybrid mail flow to combine on-premises and Exchange Online protection gateways which are mandatory to understand the functionality of mail flow scenarios in order to troubleshoot if any issue arrives
  • Manage domains and SMTP name spaces (also known as address spaces) that you configure in an Exchange organization to receive email messages.
  • Using iSCSI for Accommodating Database Storage
  • Investigate transport logs to investigate an issue
  • Plan connectors to control inbound and outbound mail flow in Microsoft Exchange Server 2013.

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Who should take the MS-203: Microsoft Microsoft 365 Messaging

MS-203: Microsoft 365 Messaging certification is for people who want to validate their skills and knowledge to deploy, configure, manage, and monitor messaging infrastructure, permissions, client access, mail protection, and mail flow in both on-premises, hybrid, and cloud enterprise environments. Background knowledge of messaging is not required; however, some general Exchange Online knowledge or experience would be beneficial.

Skills measured

  • Manage organizational settings and resources (30-35%)
  • Secure the messaging environment (20-25%)
  • Plan and manage the mail architecture (20-25%)
  • Plan and implement a hybrid configuration and migration (20-25%)

Reference: https://docs.microsoft.com/en-us/learn/certifications/exams/ms-203

Required Technical Skills

To successfully serve as a messaging administrator, candidates should have proven knowledge and background experience in working with authentication types, integration, and licensing with the applications of the Microsoft 365 platform. Also, they should have a solid mastery of the following areas:

  • Hygiene management
  • Migration and transport
  • Mailboxes
  • Client access
  • Messaging infrastructure
  • Hybrid configuration

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Microsoft MS-203 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Secure the messaging environment25–30%- Implement threat protection
  • 1. Manage Microsoft Defender for Office 365
  • 2. Configure anti-malware and anti-spam policies
  • 3. Set up quarantine policies
- Manage permissions and security
  • 1. Configure RBAC and admin roles
  • 2. Manage audit logging and reporting
  • 3. Implement data governance
- Manage compliance
  • 1. Implement retention and journal rules
  • 2. Configure data loss prevention (DLP)
  • 3. Manage eDiscovery and content search
Topic 2: Manage Microsoft Exchange Online settings and resources40–45%- Plan and manage client access
  • 1. Manage Outlook on the web and mobile device policies
  • 2. Configure Autodiscover and virtual directories
  • 3. Manage certificates and authentication
  • 4. Troubleshoot client connectivity
- Manage recipients and resources
  • 1. Manage email addresses and forwarding
  • 2. Create and manage mailboxes, groups, and contacts
  • 3. Implement archive mailboxes and retention policies
  • 4. Manage resource mailboxes and permissions
- Manage organizational settings
  • 1. Configure organizational sharing and relationships
  • 2. Manage accepted and remote domains
  • 3. Manage address lists and address book policies
  • 4. Configure email address policies
Topic 3: Plan and manage mail transport architecture25–30%- Manage mail flow
  • 1. Configure hybrid mail flow
  • 2. Implement email authentication: SPF, DKIM, DMARC
  • 3. Create and manage transport rules
- Plan and configure connectors
  • 1. Implement enhanced filtering
  • 2. Create and manage inbound/outbound connectors
  • 3. Configure cross-tenant connectors
- Troubleshoot mail flow
  • 1. Use connectivity analyzers
  • 2. Perform message trace and analyze headers
  • 3. Interpret NDRs and transport logs
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