Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sentinelsecurity.ie
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-20 11:49:23 UTC · ↺ Refresh
MX Hostnames
- d334615.b.ess.de.barracudanetworks.com
- d334615.a.ess.de.barracudanetworks.com
MX Priorities
- d334615.a.ess.de.barracudanetworks.com: 0
- d334615.b.ess.de.barracudanetworks.com: 10
A / AAAA Records
- 192.124.249.184 ↩ cloudproxy10184.sucuri.net
Mail Server IPs
- 18.185.115.251 ↩ mail.ess.de.barracuda.com
- 18.185.115.250 ↩ mail.ess.de.barracuda.com
- 18.185.115.252 ↩ mail.ess.de.barracuda.com
SOA Record
Raw SOA
ns1.tsgadmin.net mnowak.tsg.ie 2024100900 3600 1800 1209600 86400
Primary NS (mname)
ns1.tsgadmin.net
Admin Email (rname)
mnowak@tsg.ie
Serial
2024100900
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns1.tsgadmin.net
ns2.tsgadmin.net
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
default._domainkey
mail._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
3 records- SPFv=spf1 include:spf.protection.outlook.com -all
- sendinblue-code:8777b433daa259142eb82bda7689fc72
- MS=ms53394402
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