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M365 Onboarding Readiness
One check for whether a domain's DNS is ready to host email and Teams on Microsoft 365: MX to Exchange Online, Autodiscover, the Exchange SPF include, DKIM selectors, DMARC, and legacy Teams SRV records.
Read-only DNS checks via Cloudflare's resolver. This inspects public DNS only; it cannot see tenant-side configuration, license state, or mailbox provisioning. A green board means DNS is ready, not that onboarding is complete.