cnusd.k12.ca.us

Valid Email Server
Domain Lookup › cnusd.k12.ca.us

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
cnusd.k12.ca.us
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-28 03:50:32 UTC · ↺ Refresh

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MX Hostnames

  • cnusd-k12-ca-us.mail.protection.outlook.com

MX Priorities

  • cnusd-k12-ca-us.mail.protection.outlook.com: 0

A / AAAA Records

No A/AAAA records found.

Mail Server IPs

  • 52.101.194.17 ↩ mail-ch5pr02cu00401.inbound.protection.outlook.com
  • 52.101.42.16 ↩ mail-co1pr05cu00300.inbound.protection.outlook.com
  • 52.101.41.183 ↩ mail-byapr04cu00307.inbound.protection.outlook.com
  • 52.101.50.13 ↩ mail-mw2pr02cu00605.inbound.protection.outlook.com
  • 2a01:111:f403:c922::2 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
  • 2a01:111:f403:f901::2 ↩ mail-bl2pr02cu00402.inbound.protection.outlook.com
  • 2a01:111:f403:c903::3 ↩ mail-mw2pr02cu00503.inbound.protection.outlook.com
  • 2a01:111:f403:f802::2 ↩ mail-sj2pr05cu00202.inbound.protection.outlook.com

SOA Record

Raw SOA ns-1941.awsdns-50.co.uk awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1941.awsdns-50.co.uk
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-302.awsdns-37.com
ns-1020.awsdns-63.net
ns-1204.awsdns-22.org
ns-1941.awsdns-50.co.uk

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:_spf.psm.knowbe4.com include:amazonses.com ip4:167.88.236.1 -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

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

10 records
  • autodesk-domain-verification=7G542CskhScJB5C13H2H
  • cisco-ci-domain-verification=479d0c4c6d0205e5ad5ccb2f4b293296664dc97d702dba32a37d55912769f457
  • ecostruxure-it-verification=e5ddefd7-3943-4c7c-afcb-a763c44574b5
  • intersight=9cfd0d42596d505d99ed43de2da47123920915994b9a5777296597e48110d35a
  • jamf-site-verification=ysTOFi5ICiYkI7lTdr3Qow
  • openai-domain-verification=dv-ajCFV9EkcdE7Q3zR5s54ocFD
  • smartsheet-site-validation=9n-uYfBvl09zbPENhLt5Fk6hQA5u0y8Z
  • SPFv=spf1 include:spf.protection.outlook.com include:_spf.psm.knowbe4.com include:amazonses.com ip4:167.88.236.1 -all
  • ZOOM_verify_mc_blmHTTH2Y-gvmPUxPlg
  • apple-domain-verification=VQotQ1CvEXM21ilI
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