Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ntsb.gov
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-21 04:18:07 UTC · ↺ Refresh
MX Hostnames
- ntsb-gov.mail.protection.outlook.com
MX Priorities
- ntsb-gov.mail.protection.outlook.com: 0
A / AAAA Records
- 104.18.20.78 (no PTR)
- 104.18.21.78 (no PTR)
- 2606:4700::6812:144e
- 2606:4700::6812:154e
Mail Server IPs
- 52.101.40.6 ↩ mail-cy1pr03cu00106.inbound.protection.outlook.com
- 52.101.41.4 ↩ mail-sj2pr05cu00204.inbound.protection.outlook.com
- 52.101.41.6 ↩ mail-sj0pr03cu01406.inbound.protection.outlook.com
- 52.101.41.22 ↩ mail-sj2pr05cu00406.inbound.protection.outlook.com
- 2a01:111:f403:f90a:: ↩ mail-bn6pr02cu00300.inbound.protection.outlook.com
- 2a01:111:f403:c922:: ↩ mail-bl0pr03cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f905::3 ↩ mail-dm5pr02cu00203.inbound.protection.outlook.com
- 2a01:111:f403:c927:: ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
SOA Record
Raw SOA
audrey.ns.cloudflare.com dns.cloudflare.com 2399514306 10000 2400 604800 1800
Primary NS (mname)
audrey.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399514306
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
todd.ns.cloudflare.com
audrey.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:_spf-ssg-a.microsoft.com a:spf.ntsb.gov -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;pct=100;rua=mailto:[email protected],mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
11 records- MS=ms86668619
- adobe-idp-site-verification=59ba67cbfc4785feef85a4ef699876f643c02096e33132a3be07e10c8cbb77dc
- adobe-sign-verification=1c50743909f8880b93400c7257261dbf5a54eb770d21db8d727923be827b0b4d
- apple-domain-verification=3iOMpSP40e5ry6th
- box-domain-verification=92e6e89f1879fc2a44c110016d1ef837b8c31106e35560aa8c42e3c6904387ac
- cloudflare_dashboard_sso=7dc973a5e3dad21096b7177c51098ead
- google-site-verification=XV4JnunBdJOm2Hc-LgwyNqhHxAKulyRclTyp61Hqg8E
- SPFv=spf1 include:spf.protection.outlook.com include:_spf-ssg-a.microsoft.com a:spf.ntsb.gov -all
- 1FYYN6wS5AmvOawPn4Bp67qJCAlG9/OyikawcFX7uCrzC8bxCKbA7QKBmRzjsnIJRDxzbyNqz53WDg3uRERoYA==
- 3BQlhb+WKbzpH6m/72YmTtmqQEyzoVL3SH/jwMVjgHMyonvSDGfzSUylGXBHflogh22Img2heS17LcKcxRXTXQ==
- MS=ms40662074
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