Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
nwhvac.com
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 23:56:17 UTC · ↺ Refresh
MX Hostnames
- d321402a.ess.barracudanetworks.com
- d321402b.ess.barracudanetworks.com
MX Priorities
- d321402a.ess.barracudanetworks.com: 10
- d321402b.ess.barracudanetworks.com: 20
A / AAAA Records
- 198.71.233.71 ↩ 71.233.71.198.host.secureserver.net
Mail Server IPs
- 209.222.82.255 ↩ mail.ess.barracuda.com
- 209.222.82.253 ↩ mail.ess.barracuda.com
- 209.222.82.252 ↩ mail.ess.barracuda.com
SOA Record
Raw SOA
ns-769.awsdns-32.net awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-769.awsdns-32.net
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-769.awsdns-32.net
ns-1101.awsdns-09.org
ns-1618.awsdns-10.co.uk
ns-335.awsdns-41.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:172.234.203.158 include:spf.protection.outlook.com mx -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
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ 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=MS=ms24326446
- i42uo0rqk27heacslkh53v7fpp
- SPFv=spf1 ip4:172.234.203.158 include:spf.protection.outlook.com mx -all
Full email verification for nwhvac.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits