mchonline.org

Valid Email Server
Domain Lookup › mchonline.org

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
mchonline.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-18 06:02:13 UTC · ↺ Refresh

MX Hostnames

  • mchonline-org.mail.protection.outlook.com

MX Priorities

  • mchonline-org.mail.protection.outlook.com: 0

A / AAAA Records

  • 50.6.43.71 ↩ 50-6-43-71.unifiedlayer.com

Mail Server IPs

  • 52.101.194.3 ↩ mail-ch1pr04cu00103.inbound.protection.outlook.com
  • 52.101.10.1 ↩ mail-bn6pr02cu00301.inbound.protection.outlook.com
  • 52.101.40.0 ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
  • 52.101.50.7 ↩ mail-co1pr21cu00207.inbound.protection.outlook.com
  • 2a01:111:f403:c901::1 ↩ mail-bl2pr04cu00201.inbound.protection.outlook.com
  • 2a01:111:f403:f804::2 ↩ mail-co1pr05cu00402.inbound.protection.outlook.com
  • 2a01:111:f403:f90f:: ↩ mail-sa9pr04cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:c802:: ↩ mail-cy4pr03cu00100.inbound.protection.outlook.com

SOA Record

Raw SOA ns81.worldnic.com namehost.worldnic.com 126031716 10800 3600 604800 3600
Primary NS (mname)
ns81.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126031716
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns81.worldnic.com
ns82.worldnic.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:spfa.cpmails.com ~all
📊 DNS lookups: 2/10
~ 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

5 records
  • SPFv=spf1 include:spf.protection.outlook.com include:spfa.cpmails.com ~all
  • duo_sso_verification=LX6RupNQlRsgN18Kw58P8rqY2zpt5FmbrPMnYQCkkdWTRxngvTfnyUKb93Jn3mM4
  • apple-domain-verification=evB5HITvpq1Gd6JO
  • 6762615
  • google-site-verification=EA46FAaryOk1JQVfkDaWny-l7KzojWYvoMFasVtuLTI
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