Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
semperfiheatingcooling.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 08:52:17 UTC · ↺ Refresh
MX Hostnames
- semperfiheatingcooling-com.mail.protection.outlook.com
MX Priorities
- semperfiheatingcooling-com.mail.protection.outlook.com: 0
A / AAAA Records
- 148.135.133.111 (no PTR)
Mail Server IPs
- 52.101.40.6 ↩ mail-cy1pr03cu00106.inbound.protection.outlook.com
- 52.101.11.13 ↩ mail-sn1pr0501cu00205.inbound.protection.outlook.com
- 52.101.41.6 ↩ mail-sj0pr03cu01406.inbound.protection.outlook.com
- 52.101.11.7 ↩ mail-sa9pr04cu00107.inbound.protection.outlook.com
- 2a01:111:f403:f910:: ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 2a01:111:f403:f905::4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
- 2a01:111:f403:f908::1 ↩ mail-bn1pr04cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f90f::1 ↩ mail-sa9pr04cu00201.inbound.protection.outlook.com
SOA Record
Raw SOA
ns21.domaincontrol.com dns.jomax.net 2026030601 28800 7200 604800 600
Primary NS (mname)
ns21.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026030601
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns21.domaincontrol.com
ns22.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.google.com include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
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
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 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
5 records- google-site-verification=uCZzhzy1wqBve51rGu0WlQPcu61Y4yriBoNeGm3VUkc
- google-site-verification=rW3GsZiweKjFfdaLcuZSDXIDESsdcAm2hTAL82zTECQ
- SPFv=spf1 include:_spf.google.com include:spf.protection.outlook.com -all
- MS=ms62913574
- facebook-domain-verification=e6vjgpmxeldsjlpk33yzooyx7kror1
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