mdbiz.com

Valid Email Server
Domain Lookup › mdbiz.com

Domain Overview

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

Checked via [email protected] · 2026-03-23 22:04:55 UTC · ↺ Refresh

MX Hostnames

  • mx2-us1.ppe-hosted.com
  • mdbiz-com.mail.protection.outlook.com
  • mx1-us1.ppe-hosted.com

MX Priorities

  • mx1-us1.ppe-hosted.com: 10
  • mdbiz-com.mail.protection.outlook.com: 0
  • mx2-us1.ppe-hosted.com: 20

A / AAAA Records

  • 192.252.156.23

Mail Server IPs

  • 67.231.154.162 ↩ mx1-us1.ppe-hosted.com
  • 148.163.129.50 ↩ mx1-us1.ppe-hosted.com
  • 52.101.41.58 ↩ mail-sj0pr02cu00102.inbound.protection.outlook.com
  • 52.101.41.180 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
  • 52.101.10.10 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com
  • 52.101.11.17 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:c946::1 ↩ mail-ch1pr04cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:f908:: ↩ mail-bn1pr21cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:f912:: ↩ mail-cy5pr03cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:c946::2 ↩ mail-ch4pr04cu00102.inbound.protection.outlook.com
  • 148.163.129.51
  • 67.231.154.163

SOA Record

Raw SOA ns83.worldnic.com namehost.worldnic.com 122052413 10800 3600 604800 3600
Primary NS (mname)
ns83.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
122052413
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns83.worldnic.com
ns84.worldnic.com

SPF Record

✓ Soft Fail (~all)
v=spf1 a:dispatch-us.ppe-hosted.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate 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
  • MS=A9F1BB7D18AD7105DDB9F161B58FC465A5EF04FE
  • SPFv=spf1 a:dispatch-us.ppe-hosted.com ~all
  • ppe-c462c43c5b5b70cc076e
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