robinsonschool.net

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
robinsonschool.net
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-30 10:40:58 UTC · ↺ Refresh

MX Hostnames

  • robinsonschool-net.mail.protection.outlook.com

MX Priorities

  • robinsonschool-net.mail.protection.outlook.com: 0

A / AAAA Records

  • 205.178.189.131 ↩ wf.networksolutions.com

Mail Server IPs

  • 52.101.10.6 ↩ mail-bn1pr21cu00106.inbound.protection.outlook.com
  • 52.101.194.4 ↩ mail-ch4pr04cu00104.inbound.protection.outlook.com
  • 52.101.9.12 ↩ mail-bl0pr05cu00504.inbound.protection.outlook.com
  • 52.101.10.5 ↩ mail-bn6pr04cu00105.inbound.protection.outlook.com
  • 2a01:111:f403:c801:: ↩ mail-sa9pr02cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:f804::3 ↩ mail-co1pr03cu00403.inbound.protection.outlook.com
  • 2a01:111:f403:f908::1 ↩ mail-bn1pr04cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:f802:: ↩ mail-byapr05cu00400.inbound.protection.outlook.com

SOA Record

Raw SOA ns99.worldnic.com namehost.worldnic.com 125082012 10800 3600 604800 3600
Primary NS (mname)
ns99.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
125082012
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns99.worldnic.com
ns100.worldnic.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

✓ 3 found
selector1._domainkey
selector2._domainkey
k1._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

2 records
  • SPFv=spf1 include:spf.protection.outlook.com -all
  • 34hc70ZP0hTDgYQRNVH/ckl+RTRetAElCbQH2XMQlVYR/d4VDvlay5KGjPc0RLxbJj7JwCUHPpAG8SHM2WqW0A==
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