contexta3.com

Valid Email Server
Domain Lookup › contexta3.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
contexta3.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-23 18:30:50 UTC · ↺ Refresh

MX Hostnames

  • contexta3-com.mail.protection.outlook.com

MX Priorities

  • contexta3-com.mail.protection.outlook.com: 0

A / AAAA Records

  • 104.21.37.42 (no PTR)
  • 172.67.203.188 (no PTR)
  • 2606:4700:3031::6815:252a
  • 2606:4700:3032::ac43:cbbc

Mail Server IPs

  • 52.101.41.24 ↩ mail-sj0pr03cu01600.inbound.protection.outlook.com
  • 52.101.50.7 ↩ mail-co1pr21cu00207.inbound.protection.outlook.com
  • 40.93.192.4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
  • 52.101.41.58 ↩ mail-sj0pr02cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:c91d::b ↩ mail-mw2pr02cu00603.inbound.protection.outlook.com
  • 2a01:111:f403:c802:: ↩ mail-cy4pr03cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:c902::1 ↩ mail-sj2pr05cu00401.inbound.protection.outlook.com
  • 2a01:111:f403:c801::1 ↩ mail-sn1pr0501cu00101.inbound.protection.outlook.com

SOA Record

Raw SOA barbara.ns.cloudflare.com dns.cloudflare.com 2397054990 10000 2400 604800 1800
Primary NS (mname)
barbara.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2397054990
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

barbara.ns.cloudflare.com
chad.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 ip4:97.107.139.17 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
  • SPFv=spf1 ip4:97.107.139.17 include:spf.protection.outlook.com -all
  • google-site-verification=6i8YaKKe8w3nlVCY5DBrV61tmC61Qzc1lgN56Poyr9U
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