estudiantec.cr

Valid Email Server
Domain Lookup › estudiantec.cr

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
estudiantec.cr
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-27 08:42:07 UTC · ↺ Refresh

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MX Hostnames

  • mxa-00787001.gslb.pphosted.com
  • 1204138626.mail.outlook.com
  • mxb-00787001.gslb.pphosted.com
  • estudiantec-cr.mail.protection.outlook.com

MX Priorities

  • 1204138626.mail.outlook.com: 51
  • estudiantec-cr.mail.protection.outlook.com: 50
  • mxa-00787001.gslb.pphosted.com: 0
  • mxb-00787001.gslb.pphosted.com: 0

A / AAAA Records

  • 181.193.125.22

Mail Server IPs

  • 52.101.9.2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
  • 52.101.8.51 ↩ mail-dm1pr04cu00203.inbound.protection.outlook.com
  • 52.101.50.10 ↩ mail-mw2pr02cu00502.inbound.protection.outlook.com
  • 52.101.10.14 ↩ mail-bn6pr04cu00206.inbound.protection.outlook.com
  • 2a01:111:f403:c91d:: ↩ mail-mw2pr04cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:c936:: ↩ mail-cy1pr05cu00400.inbound.protection.outlook.com
  • 2a01:111:f403:c903::3 ↩ mail-mw2pr02cu00503.inbound.protection.outlook.com
  • 2a01:111:f403:c91d::b ↩ mail-mw2pr02cu00603.inbound.protection.outlook.com
  • 52.101.40.4 ↩ mail-cy5pr03cu00204.inbound.protection.outlook.com
  • 52.101.11.7 ↩ mail-sa9pr04cu00107.inbound.protection.outlook.com
  • 52.101.9.11
  • 2a01:111:f403:c802::
  • 2a01:111:f403:f913::1
  • 2a01:111:f403:f901::
  • 205.220.168.128

SOA Record

Raw SOA ns1-09.azure-dns.com azuredns-hostmaster.microsoft.com 1 3600 300 2419200 300
Primary NS (mname)
ns1-09.azure-dns.com
Admin Email (rname)
azuredns-hostmaster@microsoft.com
Serial
1
Refresh
3600s
Retry
300s
Expire
2419200s
Minimum TTL
300s

Nameservers (NS)

ns3-09.azure-dns.org
ns4-09.azure-dns.info
ns1-09.azure-dns.com
ns2-09.azure-dns.net

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf-00787001.pphosted.com -all
📊 DNS lookups: 2/10
✓ 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

5 records
  • SPFv=spf1 include:spf.protection.outlook.com include:spf-00787001.pphosted.com -all
  • adobe-idp-site-verification=99a5c22f849e6f817330eba29eafa8f43f3804c9b1cdcf2df82688688cdd9d7e
  • je7ukn7btfnjt0j8qr41h5f68m
  • 5732maalaoofolde9fb30i8kki
  • autodesk-domain-verification=IvZyyzP8hOHaVHkmqaFb
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