simpsonhouse.org

Valid Email Server
Domain Lookup › simpsonhouse.org

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
simpsonhouse.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-21 05:21:59 UTC · ↺ Refresh

MX Hostnames

  • simpsonhouse-org.mail.protection.outlook.com

MX Priorities

  • simpsonhouse-org.mail.protection.outlook.com: 10

A / AAAA Records

  • 104.21.68.155 (no PTR)
  • 172.67.196.166 (no PTR)
  • 2606:4700:3036::6815:449b
  • 2606:4700:3031::ac43:c4a6

Mail Server IPs

  • 52.101.194.3 ↩ mail-ch1pr04cu00103.inbound.protection.outlook.com
  • 52.101.9.24 ↩ mail-bl2pr02cu00400.inbound.protection.outlook.com
  • 52.101.11.19 ↩ mail-sa9pr04cu00203.inbound.protection.outlook.com
  • 52.101.41.56 ↩ mail-sj0pr21cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:c922::1 ↩ mail-bl0pr05cu00501.inbound.protection.outlook.com
  • 2a01:111:f403:f913::1 ↩ mail-cy5pr05cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:c922:: ↩ mail-bl0pr03cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:f90a:: ↩ mail-bn6pr02cu00300.inbound.protection.outlook.com

SOA Record

Raw SOA jeremy.ns.cloudflare.com dns.cloudflare.com 2398786256 10000 2400 604800 1800
Primary NS (mname)
jeremy.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398786256
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

naomi.ns.cloudflare.com
jeremy.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.smtp2go.com include:spf.ess.barracudanetworks.com ip4:206.205.45.185/32 -all
📊 DNS lookups: 3/10
✓ 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

3 records
  • knowbe4-site-verification=0076662ee6ccfa686a9b4dd8413067dd
  • SPFv=spf1 include:spf.protection.outlook.com include:spf.smtp2go.com include:spf.ess.barracudanetworks.com ip4:206.205.45.185/32 -all
  • MS=ms31049056
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