liceo.edu

Valid Email Server
Domain Lookup › liceo.edu

Domain Overview

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

Checked via [email protected] · 2026-04-04 13:30:16 UTC · ↺ Refresh

MX Hostnames

  • liceo-edu.mail.protection.outlook.com

MX Priorities

  • liceo-edu.mail.protection.outlook.com: 0

A / AAAA Records

  • 82.25.89.195 (no PTR)

Mail Server IPs

  • 52.101.9.0 ↩ mail-bl2pr02cu00100.inbound.protection.outlook.com
  • 52.101.194.12 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
  • 52.101.10.6 ↩ mail-bn1pr21cu00106.inbound.protection.outlook.com
  • 52.101.11.15 ↩ mail-sa9pr02cu00207.inbound.protection.outlook.com
  • 2a01:111:f403:c902::7 ↩ mail-sj0pr02cu00107.inbound.protection.outlook.com
  • 2a01:111:f403:c902::6 ↩ mail-sj0pr21cu00106.inbound.protection.outlook.com
  • 2a01:111:f403:c901::1 ↩ mail-bl2pr04cu00201.inbound.protection.outlook.com
  • 2a01:111:f403:f901::1 ↩ mail-bl0pr02cu00601.inbound.protection.outlook.com

SOA Record

Raw SOA primary.guardeddns.net dns-admin.guardeddns.net 243 28800 450 1209600 900
Primary NS (mname)
primary.guardeddns.net
Admin Email (rname)
dns-admin@guardeddns.net
Serial
243
Refresh
28800s
Retry
450s
Expire
1209600s
Minimum TTL
900s

Nameservers (NS)

ns2.omnis.com
ns1.omnis.com

SPF Record

✓ Strict (-all)
v=spf1 mx ip4:24.139.66.106/32 ip4:67.230.92.48/29 ip4:192.254.98.182/32 ip4:192.254.101.64/29 ip4:216.239.133.202/32 include:spf.guardedhost.com include:spf.protection.outlook.com include:omnis.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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

11 records
  • sophos-domain-verification=7a7bb3525575b682be0de54fe684eb32b39c50975e80773f1c959a8e2921646d
  • hfkoen26fe46struao0p6urm5c
  • 65om7q7j1po9d08nhle5o2cj70
  • n7opuqjs7j87tue9r32bvkgnqp
  • MS=ms54564359
  • d7632vtptk280spt21gcoflgr5
  • cga22h1v6vba9f0ko8ffpjs56e
  • rlgr9mfrko4unml8pfhtlh0l41
  • SPFv=spf1 mx ip4:24.139.66.106/32 ip4:67.230.92.48/29 ip4:192.254.98.182/32 ip4:192.254.101.64/29 ip4:216.239.133.202/32 include:spf.guardedhost.com include:spf.protection.outlook.com include:omnis.com -all
  • Xf9KgRVQmt8tn+rDJdGF+ELW2WSi6h7SBQt3pJ4h7ZLGgLGpFrVy1cI1LtXlVi+f0uHiePDuzJ05WcPucO9cxw==
  • adobe-idp-site-verification=0a0a6d532c935b019ea26f00471f1661185d3ffec1afb97c877bba2b7ba84815
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