Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
advancedheatingandcooling.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 23:50:32 UTC · ↺ Refresh
MX Hostnames
- advancedheatingandcooling-com.mail.protection.outlook.com
MX Priorities
- advancedheatingandcooling-com.mail.protection.outlook.com: 10
A / AAAA Records
- 104.21.41.188 (no PTR)
- 172.67.166.156 (no PTR)
- 2606:4700:3035::ac43:a69c
- 2606:4700:3037::6815:29bc
Mail Server IPs
- 52.101.9.20 ↩ mail-bl0pr02cu00604.inbound.protection.outlook.com
- 52.101.9.17 (no PTR)
- 52.101.8.46 ↩ mail-dm6pr05cu00406.inbound.protection.outlook.com
- 52.101.11.17 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
- 2a01:111:f403:c902::14 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
- 2a01:111:f403:f90d::1 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
- 2a01:111:f403:f901::1 ↩ mail-bl0pr02cu00601.inbound.protection.outlook.com
- 2a01:111:f403:f909:: ↩ mail-bn6pr04cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
dolly.ns.cloudflare.com dns.cloudflare.com 2399207642 10000 2400 604800 1800
Primary NS (mname)
dolly.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399207642
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
dolly.ns.cloudflare.com
jakub.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:_spf.psm.knowbe4.com include:spf.mailjet.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 1 found
dkim._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: dkim
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- apple-domain-verification=vfzehdDZJE0WNnbm
- google-site-verification=gI-mUfjdK4WS9dp-EtGDvpY7KE9-kEU5-NzVl3vZlu4
- SPFv=spf1 include:spf.protection.outlook.com include:_spf.psm.knowbe4.com include:spf.mailjet.com -all
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