Is outlook.com a valid email domain?
outlook.com can receive email. It publishes 1 mail server, run by Microsoft (Outlook or Microsoft 365), and the first choice is outlook-com.olc.protection.outlook.com.
It is a free, public mailbox provider, and it is not on our disposable list.
SPF is published and ends with -all. DMARC is set to none.
Check an email address at outlook.com
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MX records (Microsoft (Outlook or Microsoft 365))
| Priority | Mail server | Resolves to |
|---|---|---|
| 5 | outlook-com.olc.protection.outlook.com | 52.101.209.27, 52.101.103.161 |
SPF
Record published
v=spf1 include:spf2.outlook.com -all
DMARC
Policy: none
v=DMARC1; p=none; sp=quarantine; pct=100; rua=mailto:rua@dmarc.microsoft; ruf=mailto:ruf@dmarc.microsoft; fo=1
Disposable?
No, not on our disposable list.
Free provider?
Yes, a free public mailbox provider.
What this means for your email list
Is a free-provider address a problem?
Not by itself. outlook.com is a normal mailbox provider used by real people, and mail to it is delivered reliably. The thing to watch is whether the specific mailbox exists, which a domain check cannot tell you, so verify each address.
Sender authentication
outlook.com has DMARC in monitoring mode (p=none). It collects reports but does not yet block spoofed mail, so the domain is easier to impersonate.
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Sign up to get a report summary →Frequently asked questions
- Is outlook.com a valid email domain?
- Yes. outlook.com publishes 1 MX record and can receive email. Whether a particular mailbox exists is a separate question that only a mailbox check can answer.
- Is outlook.com a disposable email domain?
- No. outlook.com is not on our disposable list, but it is a free public provider. The list is updated regularly, and new throwaway domains appear all the time.
- What are the MX records for outlook.com?
- outlook-com.olc.protection.outlook.com (priority 5).
- Does outlook.com have SPF and DMARC?
- SPF: yes, ending -all. DMARC: yes, policy none.