masteracoustical.com

Valid Email Server
Domain Lookup › masteracoustical.com

Domain Overview

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

Checked via [email protected] · 2026-03-28 20:28:21 UTC · ↺ Refresh

MX Hostnames

  • masteracoustical-com.mail.eo.outlook.com
  • masteracoustical-com.mail.protection.outlook.com

MX Priorities

  • masteracoustical-com.mail.protection.outlook.com: 0
  • masteracoustical-com.mail.eo.outlook.com: 0

A / AAAA Records

  • 198.185.159.145
  • 198.185.159.144
  • 198.49.23.145
  • 198.49.23.144

Mail Server IPs

  • 52.101.194.19 ↩ mail-ch5pr02cu00303.inbound.protection.outlook.com
  • 52.101.8.34 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
  • 52.101.41.0 ↩ mail-byapr05cu00400.inbound.protection.outlook.com
  • 52.101.50.7 ↩ mail-co1pr21cu00207.inbound.protection.outlook.com
  • 2a01:111:f403:c946:: ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:c902::2 ↩ mail-sj0pr03cu01602.inbound.protection.outlook.com
  • 2a01:111:f403:f804::2 ↩ mail-co1pr05cu00402.inbound.protection.outlook.com
  • 2a01:111:f403:f905::4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
  • 52.101.194.12 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
  • 52.101.41.22 ↩ mail-sj2pr05cu00406.inbound.protection.outlook.com
  • 52.101.9.14
  • 52.101.11.9
  • 2a01:111:f403:f90f::
  • 2a01:111:f403:c902::1
  • 2a01:111:f403:c946::4
  • 2a01:111:f403:f90d::1

SOA Record

Raw SOA ns1.bdm.microsoftonline.com azuredns-hostmaster.microsoft.com 1 3600 300 2419200 300
Primary NS (mname)
ns1.bdm.microsoftonline.com
Admin Email (rname)
azuredns-hostmaster@microsoft.com
Serial
1
Refresh
3600s
Retry
300s
Expire
2419200s
Minimum TTL
300s

Nameservers (NS)

ns4.bdm.microsoftonline.com
ns1.bdm.microsoftonline.com
ns2.bdm.microsoftonline.com
ns3.bdm.microsoftonline.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

3 records
  • mscid=SW6jHdXcsphPbt6jES8GL4CBfU9KWzaqIVlV/aH30z2tbmIMo9kbhXVzlnmtvoO1NAteSSVFUyUuW2vUtwnMGg==
  • SPFv=spf1 include:spf.protection.outlook.com -all
  • SPFv=spf1 include:outlook.com ~all
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