isaacschool.org

Valid Email Server
Domain Lookup › isaacschool.org
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
isaacschool.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-21 03:22:50 UTC · ↺ Refresh

MX Hostnames

  • isaacschool-org.mail.protection.outlook.com

MX Priorities

No priority data.

A / AAAA Records

  • 104.17.68.73

Mail Server IPs

No IPs resolved.

SOA Record

No SOA record found.

Nameservers (NS)

ns22.worldnic.com
ns21.worldnic.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:customerspf.schoolmessenger.com ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

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

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

5 records
  • MS=3E9742A9CBF896730B8EA2146AC03FC4D10AF987
  • adobe-idp-site-verification=8a6b31d9663d448d9369b64f7c0b6da1a447271bf62089c592c467c47ecde1b4
  • apple-domain-verification=pmvmoTR8DfyACw1i
  • SPFv=spf1 include:spf.protection.outlook.com include:customerspf.schoolmessenger.com ~all
  • google-site-verification=R1fdSmP9hHGuwxz-7IRURrRUDAeFKr_idOLusPbUToY
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