usmex.mx

Valid Email Server
Domain Lookup › usmex.mx

Domain Overview

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

Checked via [email protected] · 2026-03-28 08:59:54 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 172.67.144.76 (no PTR)
  • 104.21.95.106 (no PTR)
  • 2606:4700:3033::6815:5f6a
  • 2606:4700:3031::ac43:904c

Mail Server IPs

  • 52.101.50.7 ↩ mail-co1pr21cu00207.inbound.protection.outlook.com
  • 52.101.9.24 ↩ mail-bl2pr02cu00400.inbound.protection.outlook.com
  • 52.101.11.13 ↩ mail-sn1pr0501cu00205.inbound.protection.outlook.com
  • 52.101.50.13 ↩ mail-mw2pr02cu00605.inbound.protection.outlook.com
  • 2a01:111:f403:f90f::1 ↩ mail-sa9pr04cu00201.inbound.protection.outlook.com
  • 2a01:111:f403:f913::1 ↩ mail-cy5pr05cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:f90d:: ↩ mail-sn1pr0501cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:f90c:: ↩ mail-sn1pr03cu00100.inbound.protection.outlook.com

SOA Record

Raw SOA ace.ns.cloudflare.com dns.cloudflare.com 2399274132 10000 2400 604800 1800
Primary NS (mname)
ace.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399274132
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

ursula.ns.cloudflare.com
ace.ns.cloudflare.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

2 records
  • mscid=bxZ767u68b6fHcvb0d4lcIun+6MVv8SAfjzKpXjsTQmEw+P+DtluRlr/936lF77fkB76puar63J81VMQM82uGg==
  • SPFv=spf1 include:spf.protection.outlook.com -all
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