preferredcourierservices.com

Valid Email Server
Domain Lookup › preferredcourierservices.com
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
preferredcourierservices.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-06-03 07:43:24 UTC · ↺ Refresh

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MX Hostnames

  • preferredcourierservices-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

  • 160.153.0.177 ↩ 177.0.153.160.host.secureserver.net

Mail Server IPs

  • 52.101.11.10 ↩ mail-sa9pr03cu00202.inbound.protection.outlook.com
  • 52.101.41.24 ↩ mail-sj0pr03cu01600.inbound.protection.outlook.com
  • 52.101.41.21 ↩ mail-sj2pr05cu00305.inbound.protection.outlook.com
  • 52.101.41.22 ↩ mail-sj2pr05cu00406.inbound.protection.outlook.com
  • 2a01:111:f403:f90a::1 ↩ mail-bn8pr03cu00201.inbound.protection.outlook.com
  • 2a01:111:f403:f90a:: ↩ mail-bn6pr02cu00300.inbound.protection.outlook.com
  • 2a01:111:f403:c91d::a ↩ mail-co1pr21cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:f90d:: ↩ mail-sn1pr0501cu00200.inbound.protection.outlook.com

SOA Record

Raw SOA ns21.domaincontrol.com dns.jomax.net 2026050600 28800 7200 604800 3600
Primary NS (mname)
ns21.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026050600
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns21.domaincontrol.com
ns22.domaincontrol.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

4 records
  • SPFv=spf1 include:spf.protection.outlook.com -all
  • ca3-185dcd7479544a47a4b0cd6eca574af1
  • NETORGFT6277512.onmicrosoft.com
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