Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
whu.edu.cn
Yes
✓ Yes
Unknown
No
Yes
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-25 07:07:08 UTC · ↺ Refresh
MX Hostnames
- whu.edu.cn
- mx-whu-edu-cn.icoremail.net
- smtp.whu.edu.cn
MX Priorities
- mx-whu-edu-cn.icoremail.net: 1
- smtp.whu.edu.cn: 5
- whu.edu.cn: 10
A / AAAA Records
- 115.156.124.13 (no PTR)
- 2001:250:4001:3::15 (no PTR)
Mail Server IPs
- 152.32.234.63 ↩ ucloud-cmmxproxy.icoremail.net
- 165.154.206.37 ↩ ucloud-cmmxproxy.icoremail.net
- 152.32.185.215 ↩ ucloud-cmmxproxy.icoremail.net
- 115.156.124.10 (no PTR)
- 115.156.124.13 (no PTR)
- 2001:250:4001:3::15 (no PTR)
SOA Record
Raw SOA
dns.whu.edu.cn master.whu.edu.cn 2303066808 120 120 604800 300
Primary NS (mname)
dns.whu.edu.cn
Admin Email (rname)
master@whu.edu.cn
Serial
2303066808
Refresh
120s
Retry
120s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
wuda.whu.edu.cn
dns.whu.edu.cn
SPF Record
✓ Strict (-all)
v=spf1 ip4:202.114.64.0/24 ip4:115.156.124.0/24 include:spf.icoremail.net -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
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 ip4:202.114.64.0/24 ip4:115.156.124.0/24 include:spf.icoremail.net -all
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