MX records for microsoft.com
Live MX lookup for microsoft.com: 1 mail host, run by Microsoft 365.
try:
- mail hosts
- microsoft-com.mail.protection.outlook.com
- provider
- microsoft
- spf record
- v=spf1 include:_spf-a.microsoft.com include:_spf-b.microsoft.com include:_spf-c.microsoft.com include:_spf-ssg-a.msft.net include:_spf1-meo.microsoft.com -all
- dmarc policy
- reject
- dmarc record
- v=DMARC1; p=reject; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
- disposable domain
- no
- free consumer provider
- no
Mail servers for microsoft.com
microsoft.com publishes 1 MX record. Senders deliver to the lowest-priority host first, microsoft-com.mail.protection.outlook.com, and fall back down the list if it does not answer.
Who runs the mail
The hosts match the pattern of Microsoft 365. Microsoft 365 (Exchange Online Protection) hosts the mail. Tenants are frequently configured to accept every address at the domain, so mailbox checks answer catch-all more often here than on other providers, and a risky verdict means the mailbox could not be disproved rather than that it is bad.
What this means for verification
An address at microsoft.com passes the free checks (syntax, MX, lists), so the API goes on to the mailbox-level SMTP handshake, which ends before any message is sent. The result is deliverable, risky, or undeliverable with a reason field that names the evidence.
More checks for microsoft.com
checked 2026-09-03 · sources: live-dns 2026-09-03 · disposable-domains 2026-09-02 · free-provider-domains 2026-09-02 · mx-provider-patterns 2026-09-03 · rdap-registration 2026-09-03 · Top-domain list: Majestic Million, CC BY 3.0
Need this at scale?
The Spaw API runs the same checks plus mailbox-level SMTP verification, batch and bulk endpoints, and list monitoring — 10 free lookups a month, no card required.