Merge pull request #5241 from MicrosoftDocs/compauth-chrisda

Compauth-chrisda to Main

Author: chrisda

defender-office-365/TOC.yml

@@ -120,6 +120,8 @@
          href: mdo-sec-ops-guide.md
        - name: SecOps guide for Teams protection in Defender for Office 365
          href: mdo-support-teams-sec-ops-guide.md
+       - name: SecOps guide for email authentication in Microsoft 365
+         href: email-auth-sec-ops-guide.md
        - name: Threat classification
          href: mdo-threat-classification.md
        - name: Security recommendations for priority accounts