Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
jcschools.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-02 17:29:06 UTC · ↺ Refresh
MX Hostnames
- jcschools-org.mail.protection.outlook.com
MX Priorities
- jcschools-org.mail.protection.outlook.com: 0
A / AAAA Records
- 104.17.162.123 (no PTR)
- 104.17.165.123 (no PTR)
- 104.17.163.123
- 104.17.164.123
- 104.17.166.123
Mail Server IPs
- 52.101.9.11 ↩ mail-bl2pr04cu00103.inbound.protection.outlook.com
- 52.101.10.5 ↩ mail-bn6pr04cu00105.inbound.protection.outlook.com
- 52.101.42.18 ↩ mail-co1pr03cu00302.inbound.protection.outlook.com
- 52.101.194.19 ↩ mail-ch5pr02cu00303.inbound.protection.outlook.com
- 2a01:111:f403:f90d:: ↩ mail-sn1pr0501cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f90d::1 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
- 2a01:111:f403:c91d::a ↩ mail-co1pr21cu00202.inbound.protection.outlook.com
- 2a01:111:f403:c902::16 ↩ mail-byapr04cu00306.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1-06.azure-dns.com azuredns-hostmaster.microsoft.com 1 3600 300 2419200 300
Primary NS (mname)
ns1-06.azure-dns.com
Admin Email (rname)
azuredns-hostmaster@microsoft.com
Serial
1
Refresh
3600s
Retry
300s
Expire
2419200s
Minimum TTL
300s
Nameservers (NS)
ns1-06.azure-dns.com
ns2-06.azure-dns.net
ns3-06.azure-dns.org
ns4-06.azure-dns.info
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:66.195.143.26 ip4:8.12.72.20 include:spf.protection.outlook.com include:customerspf.schoolmessenger.com include:_spf.ena.net include:_spf.psm.knowbe4.com include:amazonses.com include:_spfus.sysaidit.com ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; sp=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: none
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
6 records- buj56jqsk48iq9avvh0vbshj71
- 2s5glb69b34v9o9onarm4uv7k8
- kFKPT1RxgG5/ain4/r+9BSt5QzNBS0sC3qZtHuXdAvyA66Q+vZYlSVAWv/IFKNdQ1xZON5/KnWVfenita2pS5A==
- bvkt1acod45a44o822hr9lepul
- apple-domain-verification=UR1Y7eNgPYkIJ13b
- SPFv=spf1 ip4:66.195.143.26 ip4:8.12.72.20 include:spf.protection.outlook.com include:customerspf.schoolmessenger.com include:_spf.ena.net include:_spf.psm.knowbe4.com include:amazonses.com include:_spfus.sysaidit.com ~all
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