Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
nrl.navy.mil
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-29 10:45:33 UTC · ↺ Refresh
MX Hostnames
- mfe.dren.mil
- mfw.dren.mil
MX Priorities
- mfw.dren.mil: 10
- mfe.dren.mil: 10
A / AAAA Records
- 132.250.5.100 (no PTR)
- 2001:480:20:405:5::100 (no PTR)
Mail Server IPs
- 140.32.61.234 ↩ mfw.dren.mil
- 2001:480:b0:f003::234 ↩ mfw.dren.mil
- 140.32.59.234 ↩ mfe.dren.mil
- 2001:480:a0:f003::234 ↩ mfe.dren.mil
SOA Record
Raw SOA
ns1.nrl.navy.mil hostmaster.nrl.navy.mil 2026032800 10800 1800 604800 3600
Primary NS (mname)
ns1.nrl.navy.mil
Admin Email (rname)
hostmaster@nrl.navy.mil
Serial
2026032800
Refresh
10800s
Retry
1800s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns2.nrl.navy.mil
ns1.nrl.navy.mil
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.dren.mil -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ri=86400
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✗ None detectedNo 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
2 records- SPFv=spf1 include:_spf.dren.mil -all
- _y0q4x2nbtz28bnf0ngj2sgsown2dw0h
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