Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
gdkandco.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 00:48:47 UTC · ↺ Refresh
MX Hostnames
- gdkandco-com.mail.protection.outlook.com
MX Priorities
- gdkandco-com.mail.protection.outlook.com: 0
A / AAAA Records
- 162.159.140.166 (no PTR)
Mail Server IPs
- 52.101.11.7 ↩ mail-sa9pr04cu00107.inbound.protection.outlook.com
- 52.101.194.0 ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
- 52.101.10.12 ↩ mail-bn1pr21cu00204.inbound.protection.outlook.com
- 52.101.42.16 ↩ mail-co1pr05cu00300.inbound.protection.outlook.com
- 2a01:111:f403:c91d:: ↩ mail-mw2pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c946::4 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
- 2a01:111:f403:f902::2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
- 2a01:111:f403:c902:: ↩ mail-sj2pr05cu00300.inbound.protection.outlook.com
SOA Record
Raw SOA
ns47.worldnic.com namehost.worldnic.com 125101413 10800 3600 604800 3600
Primary NS (mname)
ns47.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
125101413
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns47.worldnic.com
ns48.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:u45910038.wl039.sendgrid.net -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- knowbe4-site-verification=05c4ad53435f11ab46a390a55e01f01a
- MS=ms79639384
- SPFv=spf1 include:spf.protection.outlook.com include:u45910038.wl039.sendgrid.net -all
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