greatatlanticcontracting.com

Valid Email Server
Domain Lookup › greatatlanticcontracting.com

Domain Overview

DNS: ✓ 1d ago Checker: ✓ 1d ago
greatatlanticcontracting.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-10-03 12:03:06 UTC · ↺ Refresh

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MX Hostnames

  • greatatlanticcontracting-com.mail.protection.outlook.com

MX Priorities

  • greatatlanticcontracting-com.mail.protection.outlook.com: 10

A / AAAA Records

  • 208.91.197.27 (no PTR)

Mail Server IPs

  • 52.101.40.28 ↩ mail-cy1pr02cu00104.inbound.protection.outlook.com
  • 40.93.192.1 ↩ mail-dm5pr02cu00201.inbound.protection.outlook.com
  • 52.101.60.179 ↩ mail-bn3pr0301cu00103.inbound.protection.outlook.com
  • 52.101.60.154 ↩ mail-bn0pr03cu00302.inbound.protection.outlook.com
  • 2a01:111:f403:c922:: ↩ mail-bl0pr03cu00400.inbound.protection.outlook.com
  • 2a01:111:f403:c902::3 ↩ mail-sj0pr03cu01703.inbound.protection.outlook.com
  • 2a01:111:f403:f90d:: ↩ mail-sn1pr0501cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:c803:: ↩ mail-bn1pr21cu00200.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.worldnic.com namehost.worldnic.com 121050314 10800 3600 604800 3600
Primary NS (mname)
ns1.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
121050314
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns1.worldnic.com
ns2.worldnic.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -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.protection.outlook.com -all
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