a-a-c.com

Valid Email Server
Domain Lookup › a-a-c.com

Domain Overview

DNS: ✓ 12d ago Checker: ✓ 12d ago
a-a-c.com
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-06-10 13:00:08 UTC · ↺ Refresh

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MX Hostnames

  • d286808a.ess.barracudanetworks.com
  • d286808b.ess.barracudanetworks.com

MX Priorities

  • d286808b.ess.barracudanetworks.com: 5
  • d286808a.ess.barracudanetworks.com: 0

A / AAAA Records

  • 141.193.213.10 (no PTR)

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 ns61.worldnic.com namehost.worldnic.com 126033002 10800 3600 604800 3600
Primary NS (mname)
ns61.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126033002
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns62.worldnic.com
ns61.worldnic.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com include:_psm.knowbe4.com include:_ispservices.org ip4:23.21.109.197 ip4:23.21.109.212 ip4:147.160.167.0/26 -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

✗ 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

3 records
  • MS=1307105DA8B7564020C1264F67A930929BF2E581
  • MS=ms99153360
  • SPFv=spf1 include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com include:_psm.knowbe4.com include:_ispservices.org ip4:23.21.109.197 ip4:23.21.109.212 ip4:147.160.167.0/26 -all
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