mckcpas.com

Valid Email Server
Domain Lookup › mckcpas.com

Domain Overview

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

Checked via [email protected] · 2026-03-21 04:27:02 UTC · ↺ Refresh

MX Hostnames

  • d151099a.ess.barracudanetworks.com
  • d151099b.ess.barracudanetworks.com

MX Priorities

  • d151099a.ess.barracudanetworks.com: 10
  • d151099b.ess.barracudanetworks.com: 20

A / AAAA Records

  • 104.21.6.62 (no PTR)
  • 172.67.134.141 (no PTR)
  • 2606:4700:3033::ac43:868d (no PTR)
  • 2606:4700:3030::6815:63e (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 amy.ns.cloudflare.com dns.cloudflare.com 2398841992 10000 2400 604800 1800
Primary NS (mname)
amy.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398841992
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

amy.ns.cloudflare.com
jake.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.ess.barracudanetworks.com -all
📊 DNS lookups: 1/10
✓ 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
  • google-site-verification=7xes3lbr3yXrKZXFgF6giklQE-Rd4BHJ6cT06fc0Y1k
  • SPFv=spf1 include:spf.ess.barracudanetworks.com -all
  • MS=ms10301214
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