class-china.com

Valid Email Server
Domain Lookup › class-china.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
class-china.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-14 01:52:51 UTC · ↺ Refresh

MX Hostnames

  • mxw.263.net
  • mx.263.net

MX Priorities

  • mx.263.net: 10
  • mxw.263.net: 5

A / AAAA Records

No A/AAAA records found.

Mail Server IPs

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

SOA Record

Raw SOA dns.bizcn.com abuse.bizcn.com 9 28800 14400 14400 600
Primary NS (mname)
dns.bizcn.com
Admin Email (rname)
abuse@bizcn.com
Serial
9
Refresh
28800s
Retry
14400s
Expire
14400s
Minimum TTL
600s

Nameservers (NS)

ns7.cnmsn.net
ns8.cnmsn.net

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

1 record
  • SPFv=spf1 include:spf.263xmail.com ~all
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