Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
airzoneheatingandcooling.com
Yes
✓ Yes
Zoho
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 02:02:07 UTC · ↺ Refresh
MX Hostnames
- mx2.zoho.com
- mx3.zoho.com
- mx.zoho.com
MX Priorities
- mx3.zoho.com: 50
- mx.zoho.com: 10
- mx2.zoho.com: 20
A / AAAA Records
- 74.208.149.121 (no PTR)
Mail Server IPs
- 136.143.191.44 ↩ mx3.zohomail.com
- 136.143.183.44 ↩ mx.zohomail.com
SOA Record
Raw SOA
ns1.systemdns.com hostmaster.systemdns.com 1770357208 10800 3600 1209600 60
Primary NS (mname)
ns1.systemdns.com
Admin Email (rname)
hostmaster@systemdns.com
Serial
1770357208
Refresh
10800s
Retry
3600s
Expire
1209600s
Minimum TTL
60s
Nameservers (NS)
ns3.systemdns.com
ns2.systemdns.com
ns1.systemdns.com
SPF Record
✗ MissingNo SPF record — domain is unprotected against spoofing.
⚠ No SPF record found. Email servers cannot verify authorized senders.
DMARC Record
✗ p=none
v=DMARC1; p=none
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 13 found
google._domainkey
selector1._domainkey
selector2._domainkey
default._domainkey
mail._domainkey
dkim._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
zoho._domainkey
sendgrid._domainkey
mxvault._domainkey
amazonses._domainkey
✓ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
No TXT records found.
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