unilibre.edu.co

Valid Email Server
Domain Lookup › unilibre.edu.co

Domain Overview

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

Checked via [email protected] · 2026-03-30 11:54:11 UTC · ↺ Refresh

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MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 190.143.117.132 (no PTR)

Mail Server IPs

  • 52.101.10.12 ↩ mail-bn1pr21cu00204.inbound.protection.outlook.com
  • 52.101.41.26 ↩ mail-sj0pr03cu01702.inbound.protection.outlook.com
  • 52.101.194.12 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
  • 40.93.192.4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
  • 2a01:111:f403:f908::2 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:c91d:: ↩ mail-mw2pr04cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:f802::3 ↩ mail-sj0pr03cu01403.inbound.protection.outlook.com
  • 2a01:111:f403:f90d::1 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com

SOA Record

Raw SOA ns3.telmexla.net.co internet.telmexla.net.co 2025121701 1200 7200 1209600 86400
Primary NS (mname)
ns3.telmexla.net.co
Admin Email (rname)
internet@telmexla.net.co
Serial
2025121701
Refresh
1200s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns3.telmexla.net.co
ns2.telmexla.net.co

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:mailc.sealmail.co -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected]; pct=100;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]

DKIM Selectors

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

14 records
  • XzrjH9JCnuoBI8mq
  • apple-domain-verification=XzrjH9JCnuoBI8mq
  • JUtaLkpOvzOhqe44jT23qTjhTYp4icoM7q_MpdJsFus
  • qXX6cdStyfithnyqdD5c_7wpwRmFP5SKaM3HJJQ7b5A
  • facebook-domain-verification=km7ev36jku13vvl87ss4ocexmx1c28
  • sophos-domain-verification=f83c6cca11b586bda98d6a1ac9e43ad9bd969362
  • google-site-verification=S6f2hhh_hgCJj-pwnes78u1QNpdHCoTX4Qow5-HnTzY
  • google-site-verification=a0so3hg5KHVQDz55p_FLWJ-JSk6XpDhwrN48nlmZ0r8
  • sending_domain999961=9223e72313179b75f5092b976ef7576e019accdbe97d1f3a33895aaa39a0712f
  • sending_domain999961=98cd05dc64a92a97e2542de91d70b8f88f524bc374b8e651c4373297d5ae38b3
  • 3dfOu0HyvvTVmBc7nYCVQoO4gljhr+6vBokakM3hzZ7K0DCZln1De5TCHdBXrvfDPKJcFdVNTgPPTUdGa7gxvg==
  • brevo-code:bb2aa4aa927771e5555b0129f154c5d5
  • SPFv=spf1 include:spf.protection.outlook.com include:mailc.sealmail.co -all
  • MS=ms52798442
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