hvacsystems.com

Valid Email Server
Domain Lookup › hvacsystems.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
hvacsystems.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-26 06:20:47 UTC · ↺ Refresh

MX Hostnames

  • hvacsystems-com.mail.protection.outlook.com

MX Priorities

  • hvacsystems-com.mail.protection.outlook.com: 0

A / AAAA Records

  • 108.170.41.39 ↩ intel2anew.integrityserver.net

Mail Server IPs

  • 52.101.11.10 ↩ mail-sa9pr03cu00202.inbound.protection.outlook.com
  • 52.101.9.5 ↩ mail-mn2pr04cu00205.inbound.protection.outlook.com
  • 52.101.41.22 ↩ mail-sj2pr05cu00406.inbound.protection.outlook.com
  • 52.101.41.56 ↩ mail-sj0pr21cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:c902::14 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:c92c::4 ↩ mail-dm6pr05cu00404.inbound.protection.outlook.com
  • 2a01:111:f403:c927:: ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:c91d::b ↩ mail-mw2pr02cu00603.inbound.protection.outlook.com

SOA Record

Raw SOA ns23.worldnic.com namehost.worldnic.com 123061309 10800 3600 604800 3600
Primary NS (mname)
ns23.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
123061309
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns23.worldnic.com
ns24.worldnic.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

1 record
  • SPFv=spf1 include:spf.protection.outlook.com -all
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