Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
gulfoilltd.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 02:55:37 UTC · ↺ Refresh
MX Hostnames
- gulfoilltd-com.mail.protection.outlook.com
MX Priorities
- gulfoilltd-com.mail.protection.outlook.com: 0
A / AAAA Records
- 3.168.102.106 ↩ server-3-168-102-106.jfk52.r.cloudfront.net
- 3.168.102.45 ↩ server-3-168-102-45.jfk52.r.cloudfront.net
- 3.168.102.30 ↩ server-3-168-102-30.jfk52.r.cloudfront.net
- 3.168.102.24 ↩ server-3-168-102-24.jfk52.r.cloudfront.net
- 2600:9000:2807:3a00:2:1c52:6a00:93a1 (no PTR)
- 2600:9000:2807:7c00:2:1c52:6a00:93a1 (no PTR)
- 2600:9000:2807:5400:2:1c52:6a00:93a1
- 2600:9000:2807:4000:2:1c52:6a00:93a1
- 2600:9000:2807:da00:2:1c52:6a00:93a1
- 2600:9000:2807:4600:2:1c52:6a00:93a1
- 2600:9000:2807:f000:2:1c52:6a00:93a1
- 2600:9000:2807:9e00:2:1c52:6a00:93a1
Mail Server IPs
- 52.101.145.0 ↩ mail-pnzpr01cu00200.inbound.protection.outlook.com
- 52.101.144.0 ↩ mail-ma0pr01cu01000.inbound.protection.outlook.com
- 52.101.145.2 ↩ mail-pnypr01cu00202.inbound.protection.outlook.com
- 52.101.144.3 ↩ mail-ma0pr01cu01103.inbound.protection.outlook.com
SOA Record
Raw SOA
angela.ns.cloudflare.com dns.cloudflare.com 2399677025 10000 2400 604800 1800
Primary NS (mname)
angela.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399677025
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
angela.ns.cloudflare.com
clyde.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 a ip4:134.213.176.174 ip4:162.13.201.189 ip6:2a00:1a48:7810:101:be76:4eff:fe08:bdf3 include:spf.protection.outlook.com include:servers.mcsv.net -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; pct=100; ri=3600;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
k1._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
7 records- apple-domain-verification=SoKLeJ9wSeXLfJW1
- docusign=aecc3a01-8c3c-4acc-b422-a1479564346c
- google-site-verification=Greg64HNt4k9FsbeAelpJMpJhOXX8JKmi7zBVWZP9y0
- knowbe4-site-verification=358936062ea3ce1546b42852b75980c9
- SPFv=spf1 a ip4:134.213.176.174 ip4:162.13.201.189 ip6:2a00:1a48:7810:101:be76:4eff:fe08:bdf3 include:spf.protection.outlook.com include:servers.mcsv.net -all
- MS=ms92719067
- PERJGJbBqAX7v7BCcQJKInrMqwZnfxNaOiEOYBoLtOgVKKQ6YZdL+VRrMhW4CLumh3Gbm6akpDFlXNdwI9+XNw==
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for gulfoilltd.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits