MX records for 189.cn
Live MX lookup for 189.cn: 3 mail hosts, run by an unrecognised provider.
try:
- mail hosts
- mta-189.21cn.com, mx2-189.21cn.com, mx3-189.21cn.com
- provider
- other
- spf record
- v=spf1 include:mail-spf.21cn.com include:hwmail-spf.21cn.com -all
- dmarc policy
- none published
- disposable domain
- no
- free consumer provider
- yes
Mail servers for 189.cn
DNS lists 3 mail hosts for 189.cn, starting with mta-189.21cn.com. Lower priority values are tried first; the rest exist for failover.
Who runs the mail
The hosts match the pattern of an unrecognised provider. The mail hosts do not match a known provider pattern, so the domain is probably self-hosted or on a smaller provider. Catch-all behaviour varies from server to server, which is exactly why a mailbox-level probe, not the MX record, decides whether an address exists.
What this means for verification
For 189.cn, verification runs the whole pipeline: syntax, live MX, the open lists, and then the SMTP handshake with the mail host, with no message ever transmitted. Each verdict carries a machine-readable reason.
More checks for 189.cn
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
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.