22.cn

Valid Email Server
Domain Lookup › 22.cn

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
22.cn
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-20 13:28:15 UTC · ↺ Refresh

MX Hostnames

  • mxbiz1.qq.com
  • mxbiz2.qq.com

MX Priorities

  • mxbiz1.qq.com: 5
  • mxbiz2.qq.com: 10

A / AAAA Records

  • 122.228.19.36 (no PTR)

Mail Server IPs

  • 103.86.78.2 (no PTR)
  • 103.86.78.3 (no PTR)
  • 43.154.252.16 (no PTR)
  • 43.154.252.202 (no PTR)

SOA Record

Raw SOA dns1.everdns.com dnsadmin.everdns.com 1773727176 3600 300 1209600 1800
Primary NS (mname)
dns1.everdns.com
Admin Email (rname)
dnsadmin@everdns.com
Serial
1773727176
Refresh
3600s
Retry
300s
Expire
1209600s
Minimum TTL
1800s

Nameservers (NS)

dns1.everdns.com
dns2.everdns.com

SPF Record

✓ Strict (-all)
v=spf1 ip4:210.72.13.11 ip4:43.231.160.57 include:spf.mail.qq.com -all
📊 DNS lookups: 1/10
✓ 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

1 record
  • SPFv=spf1 ip4:210.72.13.11 ip4:43.231.160.57 include:spf.mail.qq.com -all
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