Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
xjtu.edu.cn
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-20 12:18:36 UTC · ↺ Refresh
MX Hostnames
- mail.xjtu.edu.cn
MX Priorities
- mail.xjtu.edu.cn: 10
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
- 202.117.1.48 ↩ 0h.xjtu.edu.cn
- 202.117.1.49 ↩ 0h.xjtu.edu.cn
SOA Record
Raw SOA
dec3000.xjtu.edu.cn root.dec3000.xjtu.edu.cn 1510304026 1800 1800 3600 3600
Primary NS (mname)
dec3000.xjtu.edu.cn
Admin Email (rname)
root@dec3000.xjtu.edu.cn
Serial
1510304026
Refresh
1800s
Retry
1800s
Expire
3600s
Minimum TTL
3600s
Nameservers (NS)
ns2.xjtu.edu.cn
dec3000.xjtu.edu.cn
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:162.105.129.0/24 ip4:202.117.1.0/24 ip4:117.32.155.53 ip6:2001:250:1001:1::1/64 include:spf.icoremail.net ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; sp=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; rf=afrf; pct=100; ri=86400;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 1 found
k1._domainkey
✓ DKIM properly configured for selector: k1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 ip4:162.105.129.0/24 ip4:202.117.1.0/24 ip4:117.32.155.53 ip6:2001:250:1001:1::1/64 include:spf.icoremail.net ~all
- adobe-idp-site-verification=8c7998ef2c812bb0b26d2b0a4dcac3a18d0688e18e43d456bc4260f9d0bc2191
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