263.com

Valid Email Server
Domain Lookup › 263.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
263.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-14 02:13:46 UTC · ↺ Refresh

MX Hostnames

  • mxw.263.net
  • mx.263.net

MX Priorities

  • mxw.263.net: 5
  • mx.263.net: 10

A / AAAA Records

  • 211.150.65.26 ↩ smtpcom.263xmail.com

Mail Server IPs

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

SOA Record

Raw SOA ns.capital-online.com.cn root.ns.capital-online.com.cn 60 1800 300 604800 14400
Primary NS (mname)
ns.capital-online.com.cn
Admin Email (rname)
root@ns.capital-online.com.cn
Serial
60
Refresh
1800s
Retry
300s
Expire
604800s
Minimum TTL
14400s

Nameservers (NS)

ns4.capital-online.com.cn
ns5.capital-online.com.cn
ns.capital-online.com.cn
ns3.capital-online.com.cn

SPF Record

✓ Strict (-all)
v=spf1 include:spf.263.net -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict 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

1 record
  • SPFv=spf1 include:spf.263.net -all
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