upn.mx

Valid Email Server
Domain Lookup › upn.mx

Domain Overview

DNS: ✓ 19d ago Checker: ✓ 19d ago
upn.mx
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-05-21 17:42:07 UTC · ↺ Refresh

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MX Hostnames

  • upn-mx.mail.protection.outlook.com

MX Priorities

  • upn-mx.mail.protection.outlook.com: 0

A / AAAA Records

  • 200.23.113.249 ↩ www.upn.mx

Mail Server IPs

  • 52.101.10.5 ↩ mail-bn6pr04cu00105.inbound.protection.outlook.com
  • 52.101.9.20 ↩ mail-bl0pr02cu00604.inbound.protection.outlook.com
  • 52.101.11.2 ↩ mail-sn1pr03cu00102.inbound.protection.outlook.com
  • 52.101.11.19 ↩ mail-sa9pr04cu00203.inbound.protection.outlook.com
  • 2a01:111:f403:c91d::a ↩ mail-co1pr21cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:f913::1 ↩ mail-cy5pr05cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:c92c::3 ↩ mail-dm5pr04cu00103.inbound.protection.outlook.com
  • 2a01:111:f403:c902::16 ↩ mail-byapr04cu00306.inbound.protection.outlook.com

SOA Record

Raw SOA dns.upn.mx carlos.upn.mx 23276 900 600 86400 3600
Primary NS (mname)
dns.upn.mx
Admin Email (rname)
carlos@upn.mx
Serial
23276
Refresh
900s
Retry
600s
Expire
86400s
Minimum TTL
3600s

Nameservers (NS)

dns
200.23.113.4
13.84.154.132
win-2erth9kmh13

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

7 records
  • apple-domain-verification=EcgG990ETLLeO4FT
  • 148jso30tflaqam0jiq1l4qhq2
  • v62ph1nl9vldomkvbu858he5nf
  • l919bt7f00en6erv2ig3ltj58h
  • av84uk156nece5g9ddrgk72084
  • SPFv=spf1 include:spf.protection.outlook.com -all
  • cpfphff9o8pd907e1d26gj71rj
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