Microsoft Compliance
Microsoft requires high-volume senders to Outlook.com and other consumer addresses to pass SPF, DKIM, and DMARC, with reverse DNS in place. This check grades a domain against those requirements and shows what to fix.
When to use this: Outlook.com or Hotmail is rejecting or junking your mail, or a bounce cites Microsoft sender rules. Command prefix compliance-microsoft:
About the Microsoft Compliance
Grade a domain against Microsoft’s sender requirements for Outlook.com and Microsoft 365: SPF, DKIM, DMARC and reverse DNS.
FAQ
- What is 550 5.7.515?
- Microsoft’s rejection for mail from domains that fail its authentication requirements. See the guide linked below.
- Does p=none satisfy Microsoft?
- A DMARC record is required; enforcement policies are recommended.