Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
esc4.net
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-25 07:43:07 UTC · ↺ Refresh
MX Hostnames
- d150740a.ess.barracudanetworks.com
- d150740b.ess.barracudanetworks.com
MX Priorities
- d150740b.ess.barracudanetworks.com: 20
- d150740a.ess.barracudanetworks.com: 10
A / AAAA Records
- 192.0.66.57 (no PTR)
Mail Server IPs
- 209.222.82.253 ↩ mail.ess.barracuda.com
- 209.222.82.255 ↩ mail.ess.barracuda.com
- 209.222.82.252 ↩ mail.ess.barracuda.com
SOA Record
Raw SOA
ns-183.awsdns-22.com awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-183.awsdns-22.com
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-660.awsdns-18.net
ns-1118.awsdns-11.org
ns-183.awsdns-22.com
ns-1916.awsdns-47.co.uk
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com include:_spf.bbnotify.net include:_spf.wpvip.com include:printhosting.com ip4:168.171.3.41 ip4:216.18.129.133 -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; sp=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; adkim=r; aspf=r; fo=1; pct=100;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 4 found
google._domainkey
selector1._domainkey
selector2._domainkey
mail._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
5 records- nco0pt4s90qt9is1u4ijg26h2u
- SPFv=spf1 include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com include:_spf.bbnotify.net include:_spf.wpvip.com include:printhosting.com ip4:168.171.3.41 ip4:216.18.129.133 -all
- 72jucpf1moqb45qmpckovin14i
- atlassian-domain-verification=QVP1J8GkvBF7uq7J2W7jr9N7WDdbB57UOMqkbq78aIgVjvSTsdSZNqMfaVa0aX3c
- l8t3rcedm36frrtic66a34cugr
Full email verification for esc4.net
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits