chinaunicom.cn

Valid Email Server
Domain Lookup › chinaunicom.cn

Domain Overview

DNS: ✓ 1d ago Checker: ✓ 1d ago
chinaunicom.cn
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-09-04 19:20:49 UTC · ↺ Refresh

Add email validation to your forms — free

Add our free script to block 10,000+ disposable domains + perform other checks. No signup, unlimited checks.

MX validation Disposable detection Role accounts
Add to your signup form
<script src="https://check.verifyswift.com/"></script>
One line · No registration · See full docs & demo → · Customize →

MX Hostnames

  • mailc.mailex.chinaunicom.cn
  • mailb.mailex.chinaunicom.cn
  • maila.mailex.chinaunicom.cn

MX Priorities

  • mailb.mailex.chinaunicom.cn: 15
  • mailc.mailex.chinaunicom.cn: 20
  • maila.mailex.chinaunicom.cn: 10

A / AAAA Records

  • 120.52.99.224 (no PTR)

Mail Server IPs

  • 106.74.10.124 (no PTR)
  • 123.138.59.138 (no PTR)

SOA Record

Raw SOA chinaunicom.cn root.cnuninet.com 2026081300 10800 3600 3600000 3600
Primary NS (mname)
chinaunicom.cn
Admin Email (rname)
root@cnuninet.com
Serial
2026081300
Refresh
10800s
Retry
3600s
Expire
3600000s
Minimum TTL
3600s

Nameservers (NS)

ns2.bta.net.cn
ns.bta.net.cn

SPF Record

✓ Strict (-all)
v=spf1 ip4:203.160.90.88/30 ip4:106.74.10.124 ip4:111.198.162.22/31 ip4:111.198.162.24 ip4:111.198.163.22/31 ip4:111.198.163.24 ip4:210.53.66.230/31 ip4:123.138.59.136 ip4:123.138.59.137 -all
📊 DNS lookups: 0/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

7 records
  • _5lr5mf8w067zpy0vajr4qwijwwoqjq1
  • SPFv=spf1 ip4:203.160.90.88/30 ip4:106.74.10.124 ip4:111.198.162.22/31 ip4:111.198.162.24 ip4:111.198.163.22/31 ip4:111.198.163.24 ip4:210.53.66.230/31 ip4:123.138.59.136 ip4:123.138.59.137 -all
  • _globalsign-domain-verification=UnBnannCpDK0_EriYbKfJOSMa15VgLmgMVbMXuIUfA
  • apple-domain-verification=Ly5d2CrOMHdRYMDH
  • _d4sz3uvvykbu14cewsz1wcv6alsm97x
  • globalsign-domain-verification=IRfVvnoF84VsUnTFxEoZsd14uphrNHaf4p2WrfHZYf
  • _globalsign-domain-verification=OsJ74iImbhk7Mk4Kx7XdH8hJYAY9Hs2bzA3LpqOAho
Free · No signup required
Add email validation to your forms

Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.

<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site · Customize →
See demo & docs
Deep verification
Full email verification for chinaunicom.cn

SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.

No credit card required
Get 1,000 Free Credits