coolhand.cn

Valid Email Server
Domain Lookup › coolhand.cn

Domain Overview

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

Checked via [email protected] · 2026-03-14 03:16:48 UTC · ↺ Refresh

MX Hostnames

  • mxw.263.net
  • mx.263.net

MX Priorities

  • mxw.263.net: 5
  • mx.263.net: 10

A / AAAA Records

No A/AAAA records found.

Mail Server IPs

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

SOA Record

Raw SOA ce1.xincache.com enterprise1dnsadmin.dnspod.com 1693271052 3600 180 1209600 180
Primary NS (mname)
ce1.xincache.com
Admin Email (rname)
enterprise1dnsadmin@dnspod.com
Serial
1693271052
Refresh
3600s
Retry
180s
Expire
1209600s
Minimum TTL
180s

Nameservers (NS)

ce2.xincache.com
ce1.xincache.com

SPF Record

✗ Missing

No SPF record — domain is unprotected against spoofing.

⚠ No SPF record found. Email servers cannot verify authorized senders.

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
  • v=spfl include:spf.263.net-all
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