unisimon.edu.co

Valid Email Server
Domain Lookup › unisimon.edu.co

Domain Overview

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

Checked via [email protected] · 2026-03-30 12:11:05 UTC · ↺ Refresh

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MX Hostnames

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

MX Priorities

  • unisimon-edu-co.mail.protection.outlook.com: 1

A / AAAA Records

  • 200.10.174.10 (no PTR)

Mail Server IPs

  • 52.101.11.3 ↩ mail-sn1pr0501cu00103.inbound.protection.outlook.com
  • 52.101.11.13 ↩ mail-sn1pr0501cu00205.inbound.protection.outlook.com
  • 52.101.40.1 ↩ mail-cy4pr03cu00101.inbound.protection.outlook.com
  • 52.101.42.18 ↩ mail-co1pr03cu00302.inbound.protection.outlook.com
  • 2a01:111:f403:c927::1 ↩ mail-bn8pr05cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:f802::2 ↩ mail-sj2pr05cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:f804::2 ↩ mail-co1pr05cu00402.inbound.protection.outlook.com
  • 2a01:111:f403:c803:: ↩ mail-bn1pr21cu00200.inbound.protection.outlook.com

SOA Record

Raw SOA ns3.telmexla.net.co internet.telmexla.net.co 2026032702 1200 7200 1209600 86400
Primary NS (mname)
ns3.telmexla.net.co
Admin Email (rname)
internet@telmexla.net.co
Serial
2026032702
Refresh
1200s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

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

SPF Record

✓ Strict (-all)
v=spf1 ip4:190.144.176.2 ip4:200.10.174.252 ip4:200.10.174.251 ip4:162.241.156.157 include:spf.mailjet.com include:spf.protection.outlook.com include:servers.mcsv.net include:spf.sealmail.co -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

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

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

5 records
  • 54fptsmq83uslkdiaar4h4eis2
  • cnhrh1uc5mi4srice9bu915j4n
  • facebook-domain-verification=gqhmk24tv7v21a1jp0vfhpbr0pxupe
  • hnpkf0dj1lpa9q9g9tag5fsd0o
  • SPFv=spf1 ip4:190.144.176.2 ip4:200.10.174.252 ip4:200.10.174.251 ip4:162.241.156.157 include:spf.mailjet.com include:spf.protection.outlook.com include:servers.mcsv.net include:spf.sealmail.co -all
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