Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
3tglobal.com
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-25 07:16:59 UTC · ↺ Refresh
MX Hostnames
- d235545.a.ess.uk.barracudanetworks.com
- d235545.b.ess.uk.barracudanetworks.com
MX Priorities
- d235545.b.ess.uk.barracudanetworks.com: 20
- d235545.a.ess.uk.barracudanetworks.com: 10
A / AAAA Records
- 172.66.157.44 (no PTR)
- 104.20.33.141 (no PTR)
- 2606:4700:10::ac42:9d2c (no PTR)
- 2606:4700:10::6814:218d (no PTR)
Mail Server IPs
- 18.133.136.188 ↩ mail.ess.uk.barracuda.com
- 18.133.136.186 ↩ mail.ess.uk.barracuda.com
- 18.133.136.187 ↩ mail.ess.uk.barracuda.com
SOA Record
Raw SOA
aleena.ns.cloudflare.com dns.cloudflare.com 2399764436 10000 2400 604800 1800
Primary NS (mname)
aleena.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399764436
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
aleena.ns.cloudflare.com
nicolas.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf-uk.emailsignatures365.com include:spf.ess.uk.barracudanetworks.com include:spf.protection.outlook.com include:spf.ssmx.net include:email.freshdesk.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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- MS=ms83180686
- unity-sso-verification=f2665306-dd9b-464e-9954-9840c5b3679d
- SPFv=spf1 include:spf-uk.emailsignatures365.com include:spf.ess.uk.barracudanetworks.com include:spf.protection.outlook.com include:spf.ssmx.net include:email.freshdesk.com -all
Full email verification for 3tglobal.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits