colegioretos.edu.co

Valid Email Server
Domain Lookup › colegioretos.edu.co

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
colegioretos.edu.co
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-22 04:59:47 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 173.236.140.202 ↩ apache2-kant.iad1-shared-e1-17.dreamhost.com

Mail Server IPs

  • 52.101.8.44 ↩ mail-dm5pr04cu00104.inbound.protection.outlook.com
  • 52.101.9.2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
  • 52.101.11.3 ↩ mail-sn1pr0501cu00103.inbound.protection.outlook.com
  • 52.101.11.17 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:f804::2 ↩ mail-co1pr05cu00402.inbound.protection.outlook.com
  • 2a01:111:f403:f910:: ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
  • 2a01:111:f403:f908:: ↩ mail-bn1pr21cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:c902::3 ↩ mail-sj0pr03cu01703.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.dreamhost.com hostmaster.dreamhost.com 2026031703 17778 600 1814400 60
Primary NS (mname)
ns1.dreamhost.com
Admin Email (rname)
hostmaster@dreamhost.com
Serial
2026031703
Refresh
17778s
Retry
600s
Expire
1814400s
Minimum TTL
60s

Nameservers (NS)

ns1.dreamhost.com
ns2.dreamhost.com
ns3.dreamhost.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

7 records
  • ns1.bdm.microsoftonline.com
  • MS=ms40820987
  • ns3.bdm.microsoftonline.com
  • SPFv=spf1 include:spf.protection.outlook.com -all
  • MS=50A46329949AE852504B6EE50CF228CA3C415F80
  • ns2.bdm.microsoftonline.com
  • ns4.bdm.microsoftonline.com
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