Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
castlebreck.com
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 17:49:22 UTC · ↺ Refresh
MX Hostnames
- d400543.a.ess.ca.barracudanetworks.com
- d400543.b.ess.ca.barracudanetworks.com
MX Priorities
- d400543.b.ess.ca.barracudanetworks.com: 20
- d400543.a.ess.ca.barracudanetworks.com: 10
A / AAAA Records
- 20.151.199.148 (no PTR)
Mail Server IPs
- 15.222.16.211 ↩ mail.ess.ca.barracuda.com
- 15.222.16.209 ↩ mail.ess.ca.barracuda.com
- 15.222.16.210 ↩ mail.ess.ca.barracuda.com
SOA Record
Raw SOA
pdns11.domaincontrol.com dns.jomax.net 2025111918 28800 7200 604800 600
Primary NS (mname)
pdns11.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2025111918
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
pdns12.domaincontrol.com
pdns11.domaincontrol.com
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:20.72.188.1 a:azurecacntrl0.castlebreck.com a:azurecacntrl1.castlebreck.com a:rdcfw.castlebreck.com a:nagios.castlebreck.com include:spf.ess.ca.barracudanetworks.com include:spf.protection.outlook.com include:sendgrid.net ~all
📊 DNS lookups: 7/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;pct=100;fo=1;rua=mailto:[email protected];ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
selector1._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- ms-domain-verification=de017f1e-0a68-4ec7-83ce-0991bf8d2737
- MS=078F35A7F0E8203565B26650D35724E9C3B3D0C0
- SPFv=spf1 ip4:20.72.188.1 a:azurecacntrl0.castlebreck.com a:azurecacntrl1.castlebreck.com a:rdcfw.castlebreck.com a:nagios.castlebreck.com include:spf.ess.ca.barracudanetworks.com include:spf.protection.outlook.com include:sendgrid.net ~all
- google-site-verification=cu9pVVc5Q_FZRw4wSAKrUPH0aH8nKWNkEwKE3lav3Zs
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