colomboamericano.edu.co

Valid Email Server
Domain Lookup › colomboamericano.edu.co

Domain Overview

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

Checked via [email protected] · 2026-03-26 23:56:32 UTC · ↺ Refresh

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MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 54.174.231.200 ↩ ec2-54-174-231-200.compute-1.amazonaws.com
  • 50.17.222.148 ↩ ec2-50-17-222-148.compute-1.amazonaws.com
  • 34.233.234.122
  • 98.90.28.157
  • 54.83.44.53
  • 32.192.169.195

Mail Server IPs

  • 52.101.40.6 ↩ mail-cy1pr03cu00106.inbound.protection.outlook.com
  • 52.101.41.24 ↩ mail-sj0pr03cu01600.inbound.protection.outlook.com
  • 52.101.10.10 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com
  • 52.101.41.22 ↩ mail-sj2pr05cu00406.inbound.protection.outlook.com
  • 2a01:111:f403:c931::1 ↩ mail-sa9pr03cu00201.inbound.protection.outlook.com
  • 2a01:111:f403:f802::2 ↩ mail-sj2pr05cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:f802::3 ↩ mail-sj0pr03cu01403.inbound.protection.outlook.com
  • 2a01:111:f403:f805::1 ↩ mail-co1pr03cu00301.inbound.protection.outlook.com

SOA Record

Raw SOA ns-915.awsdns-50.net awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-915.awsdns-50.net
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-1754.awsdns-27.co.uk
ns-43.awsdns-05.com
ns-915.awsdns-50.net
ns-1348.awsdns-40.org

SPF Record

✓ Strict (-all)
v=spf1 mx ip4:190.121.138.127 include:spf.protection.outlook.com include:servers.mcsv.net include:spf.fromdoppler.com include:amazonses.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

DKIM Selectors

✓ 3 found
selector1._domainkey
selector2._domainkey
k1._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

1 record
  • SPFv=spf1 mx ip4:190.121.138.127 include:spf.protection.outlook.com include:servers.mcsv.net include:spf.fromdoppler.com include:amazonses.com -all
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