cbp.gov

No Valid Email Server
Domain Lookup › cbp.gov

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
cbp.gov
No
None
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-31 07:33:43 UTC · ↺ Refresh

MX Hostnames

No MX records found.

MX Priorities

No priority data.

A / AAAA Records

  • 23.207.1.3 ↩ a23-207-1-3.deploy.static.akamaitechnologies.com
  • 2600:141b:1c00:490::447a ↩ g2600-141b-1c00-0490-0000-0000-0000-447a.deploy.static.akamaitechnologies.com
  • 2600:141b:1c00:4a3::447a ↩ g2600-141b-1c00-04a3-0000-0000-0000-447a.deploy.static.akamaitechnologies.com

Mail Server IPs

No IPs resolved.

SOA Record

Raw SOA a1-91.akam.net mdnshelp.verisign.com 1552446418 28800 7200 1209600 300
Primary NS (mname)
a1-91.akam.net
Admin Email (rname)
mdnshelp@verisign.com
Serial
1552446418
Refresh
28800s
Retry
7200s
Expire
1209600s
Minimum TTL
300s

Nameservers (NS)

a7-64.akam.net
a9-66.akam.net
a8-65.akam.net
a1-91.akam.net
a22-66.akam.net
a16-67.akam.net

SPF Record

✗ Invalid
v=spf1 -all
📊 DNS lookups: 0/10
⚠ Strict -all with no allowed senders — no servers can send email for this domain.

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

✗ 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

12 records
  • 00dt0000000lbusea4
  • SPFv=spf1 -all
  • 00dt0000000pndmea4
  • 00dt0000000lbimea4
  • google-site-verification=8a3SUUlFQoMPJy4Xs5qsC5JR60Ja2ZVlSjFtg2J0NLY
  • 00dt0000000pn1zeaw
  • 00dt00000004xm5eam
  • 00dt0000000klzkeam
  • 00dt0000000tziaea4
  • DMARCv=DMARC1; p=reject; fo=1; rua=mailto:[email protected], mailto:[email protected]; ruf=mailto:[email protected]; mailto:[email protected]
  • amazonses:jY3wjqyz2x8L04lodqSQqhQfcfXZ0G3+31ugtSgwSn0=
  • 00dt0000000tzc7eao
Full email verification for cbp.gov

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