cesde.edu.co

Valid Email Server
Domain Lookup › cesde.edu.co

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
cesde.edu.co
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-04-01 09:12:32 UTC · ↺ Refresh

MX Hostnames

  • cesde-edu-co.mail.protection.outlook.com

MX Priorities

  • cesde-edu-co.mail.protection.outlook.com: 0

A / AAAA Records

  • 172.66.152.162 (no PTR)
  • 104.20.38.196 (no PTR)
  • 2606:4700:10::6814:26c4
  • 2606:4700:10::ac42:98a2

Mail Server IPs

  • 52.101.40.0 ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
  • 52.101.41.4 ↩ mail-sj2pr05cu00204.inbound.protection.outlook.com
  • 52.101.42.18 ↩ mail-co1pr03cu00302.inbound.protection.outlook.com
  • 52.101.11.17 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:c902::2 ↩ mail-sj0pr03cu01602.inbound.protection.outlook.com
  • 2a01:111:f403:f90a:: ↩ mail-bn6pr02cu00300.inbound.protection.outlook.com
  • 2a01:111:f403:f901::1 ↩ mail-bl0pr02cu00601.inbound.protection.outlook.com
  • 2a01:111:f403:f805::1 ↩ mail-co1pr03cu00301.inbound.protection.outlook.com

SOA Record

Raw SOA kanye.ns.cloudflare.com dns.cloudflare.com 2400467213 10000 2400 604800 1800
Primary NS (mname)
kanye.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2400467213
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

nelly.ns.cloudflare.com
kanye.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:derivacrm.com ip4:104.236.19.30 include:emailchef.com include:spf.masterbase.com include:zcsend.net ip4:138.197.99.250 -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; pct=100; sp=reject
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject

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

8 records
  • i3k4ok90mm3p18mtluh0d0porg
  • SPFv=spf1 include:spf.protection.outlook.com include:derivacrm.com ip4:104.236.19.30 include:emailchef.com include:spf.masterbase.com include:zcsend.net ip4:138.197.99.250 -all
  • zoho-verification=zb85672522.zmverify.zoho.com
  • 17359u4k4eqktpv32588acl33a
  • 3u2q69kp4avudouhbqudeaj2vd
  • XL8Q1HGSNLCQ2RZZVS777GPLBT6R9MFDX9IWNYNA
  • cisco-ci-domain-verification=514f0776766a2cfd117af99c46e0e810e77945b947788da512652f35e12e7901
  • google-site-verification=TZtNEIEdkKsOzvbjEiesFyNisCeiEzbBzl7h3Yw-mNY
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