coltugs.com

Valid Email Server
Domain Lookup › coltugs.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
coltugs.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-03 01:33:15 UTC · ↺ Refresh

MX Hostnames

  • coltugs-com.mail.protection.outlook.com

MX Priorities

  • coltugs-com.mail.protection.outlook.com: 0

A / AAAA Records

  • 31.220.97.13 ↩ hades.slmhosting.org

Mail Server IPs

  • 52.101.194.19 ↩ mail-ch5pr02cu00303.inbound.protection.outlook.com
  • 52.101.194.3 ↩ mail-ch1pr04cu00103.inbound.protection.outlook.com
  • 52.101.9.2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
  • 52.101.10.2 ↩ mail-bn8pr03cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:c902::2 ↩ mail-sj0pr03cu01602.inbound.protection.outlook.com
  • 2a01:111:f403:c927::1 ↩ mail-bn8pr05cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:c802:: ↩ mail-cy4pr03cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:c931::1 ↩ mail-sa9pr03cu00201.inbound.protection.outlook.com

SOA Record

Raw SOA a.ns14.net juanjose.gkscol.com 2025061902 39940 14400 604800 3600
Primary NS (mname)
a.ns14.net
Admin Email (rname)
juanjose@gkscol.com
Serial
2025061902
Refresh
39940s
Retry
14400s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

b.ns14.net
c.ns14.net
a.ns14.net

SPF Record

✓ Strict (-all)
v=spf1 ip4:198.41.39.10 a mx include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ 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

3 records
  • MS=ms97512227
  • SPFv=spf1 ip4:198.41.39.10 a mx include:spf.protection.outlook.com -all
  • MS=ms48042009
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