cbp.dhs.gov

Valid Email Server

Domain Overview

DNS: โœ“ 2mo ago Checker: โœ“ 2mo ago
cbp.dhs.gov
Yes
โœ“ Yes
Proofpoint
No
No
โš  Yes
No
No
Did you mean: [email protected]

Checked via [email protected] ยท 2026-03-26 21:26:49 UTC ยท โ†บ Refresh

MX Hostnames

  • mxa-00376703.gslb.gpphosted.com
  • mxb-00376703.gslb.gpphosted.com

MX Priorities

  • mxb-00376703.gslb.gpphosted.com: 10
  • mxa-00376703.gslb.gpphosted.com: 10

A / AAAA Records

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

Mail Server IPs

  • 67.231.155.98 โ†ฉ mx0f-00376703.gpphosted.com
  • 67.231.147.98 โ†ฉ mx0e-00376703.gpphosted.com

SOA Record

Raw SOA a1-91.akam.net please_set_email.absolutely.nowhere 2008044027 10800 3600 2592000 300
Primary NS (mname)
a1-91.akam.net
Admin Email (rname)
please_set_email@absolutely.nowhere
Serial
2008044027
Refresh
10800s
Retry
3600s
Expire
2592000s
Minimum TTL
300s

Nameservers (NS)

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

SPF Record

โœ“ Strict (-all)
v=spf1 ip4:160.1.76.32 ip4:216.128.251.155 ip4:128.129.88.18 include:spf.dhs.gov include:spf.protection.outlook.com include:spf-00376703.gpphosted.com -all
๐Ÿ“Š DNS lookups: 3/10
โœ“ Hard fail (-all) โ€” strict enforcement

DMARC Record

โœ“ Reject
v=DMARC1; p=reject; pct=100; rua=mailto:[email protected], mailto:[email protected]; ruf=mailto:[email protected]
โœ“ Reject โ€” strongest protection
๐Ÿ“‹ SPF alignment: Relaxed ยท DKIM alignment: Relaxed
๐Ÿ“ง Reports โ†’ mailto:[email protected], mailto:[email protected]

DKIM Selectors

โœ“ 2 found
selector1._domainkey
selector2._domainkey
โœ“ DKIM properly configured for selector: selector1

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

16 records
  • 00dt0000000lbusea4
  • 00dt0000000tzc7eao
  • SPFv=spf1 ip4:160.1.76.32 ip4:216.128.251.155 ip4:128.129.88.18 include:spf.dhs.gov include:spf.protection.outlook.com include:spf-00376703.gpphosted.com -all
  • LDoLkPFjEy4MjKjDVM8boCCx/i0t409zCtQ4L1/wQXFc2QSEeBGjQn7ZQGNSfIarZGRFemkVHGrTbAUAw+bUgQ==
  • MS=ms20773794
  • 00dt00000004xm5eam
  • 00Dr00000001s1deaa
  • 00dt0000000pndmea4
  • adobe-sign-verification=63ab9cb76e135a49836f38eabc5d5ab2b52dacb58638056075d2ab5a39ffc47b
  • adobe-sign-verification=0c82f99d8537a75148ab0af3dccadbf879079574bfcd302cf288fe48983ec6a4
  • 00dt0000000pn1zeaw
  • 00dt0000000klzkeam
  • 00dt0000000lbimea4
  • 00dt0000000tziaea4
  • webexdomainverification.1E9R1=0a73c8cc-6b92-495d-9c86-4b02ea935915
  • MS=ms67050418
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