hartzpt.com

Valid Email Server
Domain Lookup › hartzpt.com

Domain Overview

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

Checked via [email protected] · 2026-03-20 04:45:18 UTC · ↺ Refresh

MX Hostnames

  • hartzpt-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

  • 162.159.135.42 (no PTR)

Mail Server IPs

  • 52.101.10.14 ↩ mail-bn6pr04cu00206.inbound.protection.outlook.com
  • 52.101.41.56 ↩ mail-sj0pr21cu00100.inbound.protection.outlook.com
  • 52.101.42.14 ↩ mail-mw2pr04cu00106.inbound.protection.outlook.com
  • 52.101.50.7 ↩ mail-co1pr21cu00207.inbound.protection.outlook.com
  • 2a01:111:f403:f910:: ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
  • 2a01:111:f403:f905::3 ↩ mail-dm5pr02cu00203.inbound.protection.outlook.com
  • 2a01:111:f403:c931::1 ↩ mail-sa9pr03cu00201.inbound.protection.outlook.com
  • 2a01:111:f403:f804::2 ↩ mail-co1pr05cu00402.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.anchor.host dns.constellix.com 2015010122 43200 3600 1209600 180
Primary NS (mname)
ns1.anchor.host
Admin Email (rname)
dns@constellix.com
Serial
2015010122
Refresh
43200s
Retry
3600s
Expire
1209600s
Minimum TTL
180s

Nameservers (NS)

ns1.anchor.host
ns2.anchor.host
ns3.anchor.host
ns4.anchor.host

SPF Record

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

✗ 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

7 records
  • r20.rs6.net
  • rs6.net
  • SPFv=spf1 include:spf.protection.outlook.com -all
  • constantcontact.com
  • files.constantcontact.com
  • files.ctctcdn.com
  • MS=ms17440504
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