bit.edu.cn

Valid Email Server
Domain Lookup › bit.edu.cn

Domain Overview

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

Checked via [email protected] · 2026-03-21 12:24:21 UTC · ↺ Refresh

MX Hostnames

  • mailgw.bit.edu.cn

MX Priorities

  • mailgw.bit.edu.cn: 10

A / AAAA Records

  • 211.68.9.205 (no PTR)

Mail Server IPs

  • 202.204.80.7 ↩ gate.bit.edu.cn

SOA Record

Raw SOA bit.edu.cn.bit.edu.cn hostmaster.net.edu.cn 2100000681 10800 900 604800 86400
Primary NS (mname)
bit.edu.cn.bit.edu.cn
Admin Email (rname)
hostmaster@net.edu.cn
Serial
2100000681
Refresh
10800s
Retry
900s
Expire
604800s
Minimum TTL
86400s

Nameservers (NS)

dns1.bit.edu.cn
dns.bit.edu.cn
dns3.bit.edu.cn
dns2.bit.edu.cn

SPF Record

✓ Strict (-all)
v=spf1 ip4:202.204.80.7 ip4:192.155.91.4 ip4:114.247.56.7 ip4:202.204.80.8 ip4:202.204.80.9 -all
📊 DNS lookups: 0/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

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

5 records
  • SPFv=spf1 ip4:202.204.80.7 ip4:192.155.91.4 ip4:114.247.56.7 ip4:202.204.80.8 ip4:202.204.80.9 -all
  • brevo-code:b1414e0a234265a2faa294058248ae06
  • apple-domain-verification=VYWHcc47WZ6oOTGW
  • _globalsign-domain-verification=8D9hwWgSRt0iIoL9eoR5Ig2IgESpxHUajE4IbkSEFW
  • MS=876FD70633FA0249D617094D974A4A9D865524CF
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