k12.wa.us

Valid Email Server

Domain Overview

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

Checked via [email protected] · 2026-03-27 10:52:19 UTC · ↺ Refresh

Add email validation to your forms — free

Add our free script to block 10,000+ disposable domains + perform other checks. No signup, unlimited checks.

MX validation Disposable detection Role accounts
Add to your signup form
<script src="https://check.verifyswift.com/"></script>
One line · No registration · See full docs & demo → · Customize →

MX Hostnames

  • k12-wa-us.mail.protection.outlook.com

MX Priorities

  • k12-wa-us.mail.protection.outlook.com: 10

A / AAAA Records

  • 198.239.146.20 ↩ support.watech.wa.gov
  • 2620:12a:8001::1 (no PTR)
  • 2620:12a:8000::1

Mail Server IPs

  • 52.101.11.17 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
  • 52.101.10.12 ↩ mail-bn1pr21cu00204.inbound.protection.outlook.com
  • 52.101.8.42 ↩ mail-dm6pr03cu00402.inbound.protection.outlook.com
  • 52.101.9.20 ↩ mail-bl0pr02cu00604.inbound.protection.outlook.com
  • 2a01:111:f403:f901::1 ↩ mail-bl0pr02cu00601.inbound.protection.outlook.com
  • 2a01:111:f403:c91d::b ↩ mail-mw2pr02cu00603.inbound.protection.outlook.com
  • 2a01:111:f403:f802:: ↩ mail-byapr05cu00400.inbound.protection.outlook.com
  • 2a01:111:f403:f90f::1 ↩ mail-sa9pr04cu00201.inbound.protection.outlook.com

SOA Record

Raw SOA apple.wa-k20.net domainmaster.cac.washington.edu 2025092306 10800 1800 3600000 3600
Primary NS (mname)
apple.wa-k20.net
Admin Email (rname)
domainmaster@cac.washington.edu
Serial
2025092306
Refresh
10800s
Retry
1800s
Expire
3600000s
Minimum TTL
3600s

Nameservers (NS)

apple.uw.wa-k20.net
ruler.uw.wa-k20.net

SPF Record

✓ Strict (-all)
v=spf1 mx include:spf.protection.outlook.com ip4:216.46.160.0/19 ip4:216.58.128.0/20 ip4:146.20.0.0/16 ip4:216.186.28.106 ip4:50.56.130.220 ip4:164.177.132.168 a:ftp.ospi.k12.wa.us -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 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

6 records
  • SPFv=spf1 mx include:spf.protection.outlook.com ip4:216.46.160.0/19 ip4:216.58.128.0/20 ip4:146.20.0.0/16 ip4:216.186.28.106 ip4:50.56.130.220 ip4:164.177.132.168 a:ftp.ospi.k12.wa.us -all
  • MS=ms84141767
  • uapSecret:kJgS/O2i5JPhw6z1g5qpbw==
  • smartsheet-site-validation=QEuMbI-_FXa2rGGeDSQIbxvkcUblHtTX
  • B202V2qulyBB3IlOMHeV/n4R+bPMfS/zPHzDcinwxSKbEDz68z0Zf9ERlgLlOmZCdHt8WfanE9nAi5XpbpIPIg==
  • TdO+P9J8KAN0at7ii8rSfkuY4HaQwgHBYJdinGTb5R+nDPtlD3F3tepqtv5cK9GjBZRUAFN5g1FP77FFYe52fA==
Free · No signup required
Add email validation to your forms

Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.

<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site · Customize →
See demo & docs
Deep verification
Full email verification for k12.wa.us

SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.

No credit card required
Get 1,000 Free Credits