exchange-mailflow

Trace missing or delayed Exchange Online email by running message traces with Get-MessageTrace. This diagnostic interprets trace results to pinpoint where delivery failures occur across transport rules and connectors.

Validate SPF, DKIM, and DMARC DNS records to ensure proper sender authentication and resolve mail flow issues. This diagnostic checks your DNS configuration to identify authentication failures causing delivery problems in Office 365.

An inbound email is stuck in quarantine in Office 365 due to transport rules or spam filter policies. Use Get-QuarantineMessage to review quarantined messages and identify the specific policy triggering the retention.

Yes, you can use Graph API and Exchange PowerShell to generate client-safe mail flow reports. This diagnostic leverages endpoints and cmdlets to produce concise remediation plans and reporting outputs without exposing sensitive data.

The best way to audit transport rules and connectors for misrouted email is to validate inbound and outbound policies end-to-end. This diagnostic audits your Exchange configuration to detect rules causing misrouting.

This Exchange Online diagnostic requires no specific external dependencies. It operates using standard Graph API endpoints and Exchange PowerShell cmdlets like Get-MessageTrace to evaluate mail delivery and routing incidents.