Domain Overview
DNS: ✓ 2d ago
Checker: ✓ 2d ago
davisheatingandcooling.net
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-19 09:18:20 UTC · ↺ Refresh
MX Hostnames
- mx2-us.emailsecurity.app
- mx1-us.emailsecurity.app
MX Priorities
- mx1-us.emailsecurity.app: 0
- mx2-us.emailsecurity.app: 10
A / AAAA Records
- 66.172.26.82 (no PTR)
Mail Server IPs
- 40.121.188.167 ↩ mx1-us.emailsecurity.app
- 172.212.4.33 ↩ mx1-us.emailsecurity.app
SOA Record
Raw SOA
ns47.domaincontrol.com dns.jomax.net 2026010600 28800 7200 604800 600
Primary NS (mname)
ns47.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026010600
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns47.domaincontrol.com
ns48.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 a include:spf1.emailsecurity.app include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;rua=mailto:[email protected],mailto:[email protected];ruf=mailto:[email protected];ri=86400;aspf=r;adkim=r;fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 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
2 records- v=verifydomain MS=1995526
- SPFv=spf1 a include:spf1.emailsecurity.app include:spf.protection.outlook.com -all
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