Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ahconstruction.com
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-30 03:08:01 UTC · ↺ Refresh
MX Hostnames
- d244374.b.ess.uk.barracudanetworks.com
- d244374.a.ess.uk.barracudanetworks.com
MX Priorities
- d244374.a.ess.uk.barracudanetworks.com: 10
- d244374.b.ess.uk.barracudanetworks.com: 20
A / AAAA Records
- 213.175.208.226 ↩ cobalt.dhcnet.net
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
ns0.dhcnet.net billing.dhcnet.net 2026031601 3600 1800 1209600 86400
Primary NS (mname)
ns0.dhcnet.net
Admin Email (rname)
billing@dhcnet.net
Serial
2026031601
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns3.dhcnet.net
ns0.dhcnet.net
SPF Record
✓ Strict (-all)
v=spf1 ip4:213.175.208.226 ip4:188.39.188.98 include:spf.protection.outlook.com include:spf.ess.uk.barracudanetworks.com +a +mx +ip4:109.75.162.80 -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;sp=quarantine;adkim=r;aspf=s;pct=100;fo=0;rf=afrf;ri=86400;rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- 52b9b0a1fac3bf0560073760604ca00c1cc21ab2ed5358ccb609b8990d3564ab
- SPFv=spf1 ip4:213.175.208.226 ip4:188.39.188.98 include:spf.protection.outlook.com include:spf.ess.uk.barracudanetworks.com +a +mx +ip4:109.75.162.80 -all
- _gdw607f61ffs7y2lr51r6eqdyn5ezlr
- MS=ms19637424
Full email verification for ahconstruction.com
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