Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
uestc.edu.cn
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-19 16:08:48 UTC · ↺ Refresh
MX Hostnames
- mailgw.uestc.edu.cn
- mx-uestc-edu-cn.icoremail.net
MX Priorities
- mailgw.uestc.edu.cn: 5
- mx-uestc-edu-cn.icoremail.net: 3
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
- 202.112.14.170 (no PTR)
- 152.32.185.215 ↩ ucloud-cmmxproxy.icoremail.net
SOA Record
Raw SOA
dns.uestc.edu.cn lixiaodong.uestc.edu.cn 2100001092 3600 1800 604800 86400
Primary NS (mname)
dns.uestc.edu.cn
Admin Email (rname)
lixiaodong@uestc.edu.cn
Serial
2100001092
Refresh
3600s
Retry
1800s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
dns.uestc.edu.cn
cdnet52.uestc.edu.cn
SPF Record
✓ Strict (-all)
v=spf1 ip4:202.112.14.170 include:spf.icoremail.net -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; ruf=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 1 found
dkim._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: dkim
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 ip4:202.112.14.170 include:spf.icoremail.net -all
- google-site-verification=bS9OiEvf5PoJzRT3A8XeaT-MCI-H4GXhG0OGsQWd4EU
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