MailSure

Is mailinator.net a valid email domain?

DisposableChecked 2026-11-06

mailinator.net has working mail routing: 1 MX record pointing, led by mail.mailinator.net.

It appears on our list of disposable and throwaway email domains.

SPF is published and ends with -all. DMARC is set to reject.

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MX records

PriorityMail serverResolves to
10mail.mailinator.net23.239.11.30, 2600:3c03::f03c:91ff:fe50:caa7

SPF

Record published

v=spf1 -all

DMARC

Policy: reject

v=DMARC1;p=reject;sp=reject;aspf=s;pct=100;rua=mailto:support@manybrain.com

Disposable?

Yes, listed as a disposable email domain.

Free provider?

Yes, a free public mailbox provider.

What this means for your email list

Should you accept addresses at this domain?

Treat these as low-value. People use mailinator.net to avoid giving a real address, so the contact is unlikely to reply, buy or come back. A real-time check at signup stops them before they enter your list.

Sender authentication

mailinator.net has a strict DMARC policy (reject): mail that fails authentication is refused, which protects its brand from spoofing and means anyone sending as mailinator.net must have SPF and DKIM set up correctly.

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Frequently asked questions

Is mailinator.net a valid email domain?
Yes. mailinator.net 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 mailinator.net a disposable email domain?
Yes. mailinator.net is on our list of disposable and temporary email domains, so most services block it.
What are the MX records for mailinator.net?
mail.mailinator.net (priority 10).
Does mailinator.net have SPF and DMARC?
SPF: yes, ending -all. DMARC: yes, policy reject.

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