Domain Overview
DNS: ✓ 1d ago
Checker: ✓ 1d ago
gulf-marine.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-07-18 03:43:16 UTC · ↺ Refresh
MX Hostnames
- gulfmarine-com01b.mail.protection.outlook.com
MX Priorities
- gulfmarine-com01b.mail.protection.outlook.com: 0
A / AAAA Records
- 103.138.189.71 ↩ s11746.sgp1.stableserver.net
Mail Server IPs
- 52.101.144.0 ↩ mail-ma0pr01cu01000.inbound.protection.outlook.com
- 52.101.144.3 ↩ mail-ma0pr01cu01103.inbound.protection.outlook.com
- 52.101.145.0 ↩ mail-pnzpr01cu00200.inbound.protection.outlook.com
- 52.101.145.2 ↩ mail-pnypr01cu00202.inbound.protection.outlook.com
SOA Record
Raw SOA
ns49.domaincontrol.com dns.jomax.net 2026010601 28800 7200 604800 3600
Primary NS (mname)
ns49.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026010601
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns50.domaincontrol.com
ns49.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.zohomail360.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✗ None detectedNo 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
8 records- sTLNKaYUpS24o3kuJ8HzRNyAU/lGFpHaJX/xRYbTgcN0HuBwEhcfPj4/o1epzxau0hxomDXtMOMPrcdfL0ar1w==
- docusign=8c07498a-e8d2-4d41-a880-6930033c8d09
- SPFv=spf1 include:spf.protection.outlook.com include:spf.zohomail360.com -all
- citrix-verification-code=020d0aed-fd4f-4141-8b82-eb78abf5b8f1
- FEP5UIQ6L2XSR6N7YB9I54JHZFADL7WFBS006GX8
- docusign=0276a711-f12d-43ae-a801-f99f1a10f2c6
- atlassian-domain-verification=HMwrDFFGBMH7clIswCnVagHfT7/taJB1M8wyHrQV7rhvgJQqwSEdNOuMaOGtYVRM
- MS=ms74206065
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