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

The following will be discussed in this section:

• Analyze message headers to scan all incoming messages for spam, malware, and other threats
• Working with Microsoft Exchange Databases
• Plan connectors to control inbound and outbound mail flow in Microsoft Exchange Server 2013.
• 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
• 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.
• 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.
• Using iSCSI for Accommodating Database Storage
• Investigate transport logs to investigate an issue
• 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 domains and SMTP name spaces (also known as address spaces) that you configure in an Exchange organization to receive email messages.
• 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
• Configure connectors between tenants to manage mail traffic between Office servers and tenants
• Analyze a message trace to troubleshoot and track the health of their organization's mail flow
• Considerations for Databases and Logs
• Monitor Mail Flow
• Validate inbound and outbound mail flow
• Implementing iSCSI for Mailbox Database Storage

How to Prepare for MS-203 Test

These courses will support you in developing the skills relevant to passing the Microsoft MS-203 exam and earning the associated certification:

• Secure the Microsoft 365 Messaging environment

  This segment of the official learning path centers on how to protect your Microsoft Exchange Online environment using role-oriented permissions, compliance problems, and Microsoft’s Advanced Threat Protection. It’s 1 hour 41 minutes long and contains three modules.

• Microsoft 365 Messaging

  This is a paid instructor-led training offered by Microsoft. The course runs for five days and delves extensively into the main elements of Microsoft 365 messaging administration. These elements include message transport and mail flow, messaging security, messaging infrastructure, hygiene, compliance, and hybrid messaging. There are no perquisites to taking this class.

• Monitor Microsoft 365 messaging organizational settings and architecture

  This is the second class in the Microsoft 3-part learning path series. It teaches one how to monitor the Microsoft Exchange Online messaging framework in on-premises, cloud, and hybrid environments in a company. This course consists of 7 modules and has a total runtime of 3 hours 31 minutes.

• Devise a Microsoft 365 Messaging hybrid migration as well as configuration

  This is one of three free official courses targeted at helping you develop the skills needed to qualify as a pro-level messaging administrator. It zeros in on helping you grasp hybrid environments for messaging, tools, migration types, and the management of varied public folders. This course is three modules wide and 84 minutes long. Note, you're expected to have basic-level skills in Microsoft 365 before taking this training.

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