jackwilliams.com

Valid Email Server
Domain Lookup › jackwilliams.com

Domain Overview

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

Checked via [email protected] · 2026-04-02 19:09:01 UTC · ↺ Refresh

MX Hostnames

  • jackwilliams-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

  • 172.67.73.20 (no PTR)
  • 104.26.8.109 (no PTR)
  • 104.26.9.109 (no PTR)
  • 2606:4700:20::ac43:4914 (no PTR)
  • 2606:4700:20::681a:96d (no PTR)
  • 2606:4700:20::681a:86d (no PTR)

Mail Server IPs

No IPs resolved.

SOA Record

Raw SOA algin.ns.cloudflare.com dns.cloudflare.com 2398004401 10000 2400 604800 1800
Primary NS (mname)
algin.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398004401
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

algin.ns.cloudflare.com
kami.ns.cloudflare.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

✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 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

5 records
  • google-site-verification=A9IG7SGcO3CvmCnW_fYnIV7yH2n19_ImgjlwdQz4zMI
  • SPFv=spf1 include:spf.protection.outlook.com -all
  • MS=ms34728098
  • _globalsign-domain-verification=WfaScGwI8U-AFTvfioO66uN1rFaNx9AOcogMnWl81U
  • google-site-verification=48d0CmoMAngymFcN79lQyW5JgveuzeZiu9NJ2fvGhQk
Full email verification for jackwilliams.com

Run SMTP check, SPF/DKIM/DMARC and catch-all detection.

SPF / DKIM / DMARC Get 1,000 Free Credits