Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
zjnu.cn
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-20 15:40:15 UTC · ↺ Refresh
MX Hostnames
- hzmx01.mxmail.netease.com
- xchzmx01.mxmail.netease.com
MX Priorities
- xchzmx01.mxmail.netease.com: 5
- hzmx01.mxmail.netease.com: 10
A / AAAA Records
- 61.153.34.45 (no PTR)
Mail Server IPs
- 47.89.188.63 (no PTR)
- 47.253.12.6 (no PTR)
- 47.90.150.166 (no PTR)
- 47.253.119.154 (no PTR)
SOA Record
Raw SOA
dns.zjnu.cn master.zjnu.cn 2105081830 120 120 604800 300
Primary NS (mname)
dns.zjnu.cn
Admin Email (rname)
master@zjnu.cn
Serial
2105081830
Refresh
120s
Retry
120s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
dnstw.zjnu.cn
dns.zjnu.cn
SPF Record
✓ Strict (-all)
v=spf1 include:spf.163.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; fo=1; ruf=mailto:[email protected]; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✗ None detectedNo 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 include:spf.163.com -all
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