brs.edu.cn

Valid Email Server
Domain Lookup › brs.edu.cn

Domain Overview

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

Checked via [email protected] · 2026-03-14 03:02:11 UTC · ↺ Refresh

MX Hostnames

  • mxcom.263xmail.com
  • mxwcom.263xmail.com

MX Priorities

  • mxcom.263xmail.com: 10
  • mxwcom.263xmail.com: 5

A / AAAA Records

  • 60.205.197.220 (no PTR)

Mail Server IPs

  • 164.92.126.242 (no PTR)
  • 38.83.106.85 ↩ us-mx2.263.net
  • 143.110.227.31 (no PTR)
  • 38.83.106.84 ↩ us-mx1.263.net

SOA Record

Raw SOA ns1.service.edu.cn chenxu.cernet.com 2778813387 10800 7200 604800 86400
Primary NS (mname)
ns1.service.edu.cn
Admin Email (rname)
chenxu@cernet.com
Serial
2778813387
Refresh
10800s
Retry
7200s
Expire
604800s
Minimum TTL
86400s

Nameservers (NS)

ns1.service.edu.cn
ns2.service.edu.cn

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.263xmail.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

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

2 records
  • MS=ms35908187
  • SPFv=spf1 include:spf.263xmail.com ~all
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