MS-220: Troubleshooting Microsoft Exchange Online

Module 1: 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.

Module 2: Troubleshoot message filtering in inboxes and Microsoft Defender for Office 365

Investigate and diagnose why emails are prevented from arriving at their intended destination because of inbox rules, Microsoft Defender for Office 365, spam filter policies, and other Exchange Online features.

Module 3: Troubleshoot compliance and retention issues

Investigate and diagnose problems with compliance and item retention in your Exchange Online organization, including incorrect retention policies, problems with eDiscovery, and inappropriate holds.

Module 4: Troubleshoot encryption, auditing, and journaling

Investigate and diagnose misconfigured encryption, auditing, and journaling in your Exchange Online organization.

Module 5: Troubleshoot desktop Outlook clients

Investigate and diagnose problems that desktop and laptop computer users have when connecting their Outlook client to Exchange Online.

Module 6: Troubleshoot issues with mobile devices

Investigate and diagnose problems that users may experience when they use mobile phones, tablets, and other devices to access Exchange Online.

Module 7: Troubleshoot Exchange Online configuration issues

Investigate and diagnose Exchange Online configuration issues including provisioning errors, recipient issues, address book membership, and public folder settings.

Module 8: Troubleshoot hybrid and migration issues

Investigate and diagnose problems in an Exchange Online and Exchange Server hybrid organization, including mail flow problems, synchronization issues, and migration failures.