structural.nu

Valid Email Server
Domain Lookup › structural.nu

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
structural.nu
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-23 07:39:43 UTC · ↺ Refresh

MX Hostnames

  • structural.nu.2.arsmtp.com
  • structural.nu.1.arsmtp.com

MX Priorities

  • structural.nu.2.arsmtp.com: 20
  • structural.nu.1.arsmtp.com: 10

A / AAAA Records

  • 66.96.161.139 ↩ 139.161.96.66.static.eigbox.net

Mail Server IPs

  • 8.19.118.228 ↩ server2025.appriver.com
  • 8.31.233.247 ↩ server2024.appriver.com

SOA Record

Raw SOA ns1.dotster.com dnsadmin.dotster.com 2016050370 10800 3600 604800 3600
Primary NS (mname)
ns1.dotster.com
Admin Email (rname)
dnsadmin@dotster.com
Serial
2016050370
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns1.dotster.com
ns2.dotster.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:edgepilot.com ip4:66.96.128.0/18 ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✓ 1 found
dkim._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

1 record
  • SPFv=spf1 include:edgepilot.com ip4:66.96.128.0/18 ~all
Full email verification for structural.nu

Run SMTP check, SPF/DKIM/DMARC and catch-all detection.

SPF / DKIM / DMARC Get 1,000 Free Credits