MailSure

Is 189.cn a valid email domain?

Free providerChecked 2026-11-06

189.cn has working mail routing: 3 MX records pointing, led by mta-189.21cn.com.

It is a free, public mailbox provider, and it is not on our disposable list.

SPF is published and ends with -all. No DMARC policy was found.

Check an email address at 189.cn

Type the name before the @ to check a full address. No account needed.

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MX records

PriorityMail serverResolves to
10mta-189.21cn.com47.244.111.3
20mx2-189.21cn.com14.116.211.234
30mx3-189.21cn.com47.244.111.3

SPF

Record published

v=spf1 include:mail-spf.21cn.com include:hwmail-spf.21cn.com -all

DMARC

No record found

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?

Addresses at 189.cn are legitimate and deliverable in general. What goes wrong is the mailbox part before the @: typos, old accounts and abandoned inboxes. That is what per-address verification catches.

Sender authentication

189.cn has no DMARC policy, so receivers have no instruction on what to do with mail that fails authentication. Large mailbox providers now expect bulk senders to publish one.

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Frequently asked questions

Is 189.cn a valid email domain?
Yes. 189.cn publishes 3 MX records and can receive email. Whether a particular mailbox exists is a separate question that only a mailbox check can answer.
Is 189.cn a disposable email domain?
No. 189.cn 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 189.cn?
mta-189.21cn.com (priority 10); mx2-189.21cn.com (priority 20); mx3-189.21cn.com (priority 30).
Does 189.cn have SPF and DMARC?
SPF: yes, ending -all. DMARC: no record found.

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