sandia.gov

Valid Email Server
Domain Lookup › sandia.gov

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
sandia.gov
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-18 21:27:28 UTC · ↺ Refresh

MX Hostnames

  • smtp04asnl.sandia.gov
  • smtp05asnl.sandia.gov
  • smtp03asnl.sandia.gov

MX Priorities

  • smtp05asnl.sandia.gov: 10
  • smtp03asnl.sandia.gov: 10
  • smtp04asnl.sandia.gov: 10

A / AAAA Records

  • 198.102.154.50 ↩ f5-www.sandia.gov
  • 2620:106:6008:c00:f0::50 ↩ f5-www.sandia.gov

Mail Server IPs

  • 198.206.223.228 ↩ smtp05asnl.sandia.gov
  • 2620:106:6008:c600:f0::2:110 ↩ smtp05asnl.sandia.gov
  • 198.206.223.226 ↩ smtp03asnl.sandia.gov
  • 2620:106:6008:c600:f0::2:92 ↩ smtp03asnl.sandia.gov
  • 198.206.223.227 ↩ smtp04asnl.sandia.gov
  • 2620:106:6008:c600:f0::2:109 ↩ smtp04asnl.sandia.gov

SOA Record

Raw SOA taurus.sandia.gov dnsadmin.sandia.gov 3188061 1800 900 604800 3600
Primary NS (mname)
taurus.sandia.gov
Admin Email (rname)
dnsadmin@sandia.gov
Serial
3188061
Refresh
1800s
Retry
900s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns1.ca.sandia.gov
ns2.ca.sandia.gov
ns8.sandia.gov
ns9.sandia.gov

SPF Record

✓ Strict (-all)
v=spf1 mx include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; sp=reject; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected]; rf=afrf; pct=100; fo=1; ri=86400
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
↳ Subdomain policy: reject

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

1 record
  • SPFv=spf1 mx include:spf.protection.outlook.com -all
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