Microsoft 365 Messaging Admin Exchange Online Course

Explore how Exchange Online Protection provides cloud-based spam and malware filtering for Office 365, including connection filtering, anti-malware, transport rules, DLP, ATP, and content filtering.

Learn how to run message trace in Exchange Online, use default and custom queries, filter by sender, recipient, status, and generate downloadable reports for delivery insights.

Understand how mail flow connectors in Exchange Online route inbound and outbound emails across on-premises, partner organization, third-party filtering, and signature services.

Master mail flow rules, or transport rules, that control email routing in Exchange Online. Explore conditions, actions, exceptions, and properties, with examples like blocking senders and adding disclaimers.

Analyze email headers by examining from and to fields, return-path, and received headers to trace routing, then review authentication results (SPF, DKIM, DMARC) and spam verdicts using Message Analyzer.

Learn how SPF records authenticate email by matching sender IPs against a domain's SPF TXT record in DNS, preventing spoofing, with examples and setup steps in Office 365.

Explore how DKIM signs emails with a private key and how DNS publishes the public key for verification, plus enabling two CNAME records in Office 365.

Understand how dmarc guides email handling when spf or dkim fail. Publish a dmarc txt record with v=dmarc1, p=reject, pct=100 in office 365 dns and verify with a record analyzer.

Learn how MX records direct email to Office 365, enabling external mail delivery and internal routing, and how to publish and verify them for load balancing and Exchange Online Protection.