dupageaerospace.com

Valid Email Server
Domain Lookup › dupageaerospace.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
dupageaerospace.com
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-21 15:47:21 UTC · ↺ Refresh

MX Hostnames

  • d210615a.ess.barracudanetworks.com
  • d210615b.ess.barracudanetworks.com

MX Priorities

  • d210615b.ess.barracudanetworks.com: 5
  • d210615a.ess.barracudanetworks.com: 1

A / AAAA Records

  • 209.17.116.160 (no PTR)

Mail Server IPs

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

SOA Record

Raw SOA ns31.worldnic.com namehost.worldnic.com 126011511 10800 3600 604800 3600
Primary NS (mname)
ns31.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126011511
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns31.worldnic.com
ns32.worldnic.com

SPF Record

✓ Strict (-all)
v=spf1 mx ip4:50.240.161.210 a:mail.dupageaerospace.com include:spf.ess.barracudanetworks.com include:sendgrid.net -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

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

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

All TXT Records

4 records
  • SPFv=spf1 mx ip4:50.240.161.210 a:mail.dupageaerospace.com include:spf.ess.barracudanetworks.com include:sendgrid.net -all
  • okdns47581iljm7ng8cqavkuv
  • 6629543d24918eebd4670716e3adbb66
  • MS=BA3D641056FCEF9A37EBFE40C92ADB52E4BB77D9
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