Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
dhplumbing.com
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-20 19:46:27 UTC · ↺ Refresh
MX Hostnames
- d147709b.ess.barracudanetworks.com
- d147709a.ess.barracudanetworks.com
MX Priorities
- d147709b.ess.barracudanetworks.com: 0
- d147709a.ess.barracudanetworks.com: 0
A / AAAA Records
- 162.159.134.42 (no PTR)
Mail Server IPs
- 209.222.82.253 ↩ mail.ess.barracuda.com
- 209.222.82.252 ↩ mail.ess.barracuda.com
- 209.222.82.255 ↩ mail.ess.barracuda.com
SOA Record
Raw SOA
ns-1864.awsdns-41.co.uk awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1864.awsdns-41.co.uk
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-1074.awsdns-06.org
ns-1864.awsdns-41.co.uk
ns-728.awsdns-27.net
ns-107.awsdns-13.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.ess.barracudanetworks.com include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- brevo-code:f67747c7ad858cf5927daf2d6c2357fe
- google-site-verification=MKfoej8gL1XFdSTMDtptFvhDTKdomnoJvfsRVbY_6-U
- SPFv=spf1 include:spf.ess.barracudanetworks.com include:spf.protection.outlook.com -all
Full email verification for dhplumbing.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits