tonation-nsn.gov

Valid Email Server
Domain Lookup › tonation-nsn.gov

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
tonation-nsn.gov
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-27 22:03:01 UTC · ↺ Refresh

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MX Hostnames

  • d189089b.ess.barracudanetworks.com
  • d189089a.ess.barracudanetworks.com

MX Priorities

  • d189089b.ess.barracudanetworks.com: 10
  • d189089a.ess.barracudanetworks.com: 10

A / AAAA Records

  • 67.206.165.102 ↩ 67-206-165-102.ip.fdtnet.net

Mail Server IPs

  • 209.222.82.252 ↩ mail.ess.barracuda.com
  • 209.222.82.253 ↩ mail.ess.barracuda.com
  • 209.222.82.255 ↩ mail.ess.barracuda.com

SOA Record

Raw SOA dns2.tonation-nsn.gov hostmaster.tonation-nsn.gov 2004151539 10800 1080 2160000 900
Primary NS (mname)
dns2.tonation-nsn.gov
Admin Email (rname)
hostmaster@tonation-nsn.gov
Serial
2004151539
Refresh
10800s
Retry
1080s
Expire
2160000s
Minimum TTL
900s

Nameservers (NS)

dns.tonation-nsn.gov
dns2.tonation-nsn.gov

SPF Record

✓ Strict (-all)
v=spf1 ip4:64.25.66.0/24 ip4:67.206.165.0/24 ip4:67.231.155.142 include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1;p=none;rua=mailto:[email protected];ruf=mailto:[email protected];sp=none;fo=1;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none

DKIM Selectors

✓ 3 found
dkim._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: dkim

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

All TXT Records

3 records
  • SPFv=spf1 ip4:64.25.66.0/24 ip4:67.206.165.0/24 ip4:67.231.155.142 include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com -all
  • FBfAGpZLkMHSRBLwSLiZu7AAx2M20BSdpSknlk9Vry7I+VGRex3p09zwM8qK7uS9iLBjqrZLaJFrZ0O+Aw5xDQ==
  • MS=ms96459189
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