kolon.com

Valid Email Server
Domain Lookup › kolon.com

Domain Overview

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

Checked via [email protected] · 2026-03-29 01:53:25 UTC · ↺ Refresh

MX Hostnames

  • smtp2016.kolon.com
  • sniper.kolon.com

MX Priorities

  • sniper.kolon.com: 0
  • smtp2016.kolon.com: 10

A / AAAA Records

  • 203.225.255.219 (no PTR)

Mail Server IPs

  • 203.225.252.201 ↩ sniper.kolon.com
  • 203.225.252.36 (no PTR)

SOA Record

Raw SOA ns.kolon.co.kr root.mail.kolon.co.kr 2026032604 7200 3600 302400 43200
Primary NS (mname)
ns.kolon.co.kr
Admin Email (rname)
root@mail.kolon.co.kr
Serial
2026032604
Refresh
7200s
Retry
3600s
Expire
302400s
Minimum TTL
43200s

Nameservers (NS)

ns2.kolon.co.kr
ns.kolon.co.kr

SPF Record

✓ Soft Fail (~all)
v=spf1 include:_spfblocka.toast.com include:_spf1.kolon.com include:_spf2.kolon.com include:_spf3.kolon.com include:_spf4.kolon.com include:mailgun.org include:_spf.google.com include:spf.protection.outlook.com include:amazonses.com ~all
📊 DNS lookups: 9/10
~ Soft fail (~all) — moderate 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

12 records
  • _globalsign-domain-verification=_uGQKmKTbU5sXmKltqWwL96Kkox7NyVLokJW9mlmBc
  • pexip-ms-tenant-domain-verification=5c69331f-e2d8-45c3-a2e2-da3cda855a33
  • _globalsign-domain-verification=jaZcPmw0siHdCmwQ7rlqwRL463xZCrXhTsqb6R4fLX
  • workplace-domain-verification=cc58bf6f-32c9-49ad-b935-2372e7e30aa1
  • google-site-verification=kdkdvMZgD4Xq-WV3t-pBhBr6wEWd9oH00hucFDC50WQ
  • SPFv=spf1 include:_spfblocka.toast.com include:_spf1.kolon.com include:_spf2.kolon.com include:_spf3.kolon.com include:_spf4.kolon.com include:mailgun.org include:_spf.google.com include:spf.protection.outlook.com include:amazonses.com ~all
  • toast-domain-verification=rcCLxRH9ed9E92eYgfEJ
  • toast-domain-verification=7D8Rbkz3aH1aNlANBo9s
  • google-site-verification=aLsaWx7x0epLm8R8cfiTtaBUV2m0A1ztmMGO2saSCKo
  • MS=ms81941683
  • google-site-verification=RJF-TesAYftEjn7BEteqYrm8mp0K3j3qNAg976SxGio
  • _globalsign-domain-verification=a__7HJi-qkPcSmBk4zxC-YgxskZgIhfgQl5q3FjhEU
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