MEAPSA

Troubleshoot problems with mail flow

Investigate and diagnose problems with email flow in your Exchange Online organization. Find issues caused by incorrect transport rules, DNS records, message headers, and other causes.

Support Engineer

Azure Active Directory

Microsoft Exchange Online

Exchange Server

Outlook

Microsoft Defender for Office 365

Module Objectives

After completing this module, you'll be able to:

Identify and troubleshoot message delivery issues.
Determine why Exchange Online is routing messages incorrectly.
Identify wrongly configured mail records in DNS.
Troubleshoot issues with SMTP mail transfer.

Units

Introduction min
Investigate problematic messages min
Troubleshoot transport rules and conditional routing min
Troubleshoot DNS issues min
Investigate and repair SMTP issues min
Troubleshoot problems with mail flow min
Knowledge check min
Summary min

Prerequisites

Experience with PowerShell and the Exchange PowerShell module.
Significant experience deploying, managing, and troubleshooting Exchange environments.