Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
thechicagoschool.edu
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-22 23:23:35 UTC · ↺ Refresh
MX Hostnames
- thechicagoschool-edu.mail.protection.outlook.com
MX Priorities
- thechicagoschool-edu.mail.protection.outlook.com: 0
A / AAAA Records
- 15.197.191.128 ↩ afc876ef827f8b6d6.awsglobalaccelerator.com
- 99.83.160.113 ↩ afc876ef827f8b6d6.awsglobalaccelerator.com
Mail Server IPs
- 52.101.11.7 ↩ mail-sa9pr04cu00107.inbound.protection.outlook.com
- 52.101.9.2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
- 52.101.9.5 ↩ mail-mn2pr04cu00205.inbound.protection.outlook.com
- 52.101.194.17 ↩ mail-ch5pr02cu00401.inbound.protection.outlook.com
- 2a01:111:f403:f805::1 ↩ mail-co1pr03cu00301.inbound.protection.outlook.com
- 2a01:111:f403:c902:: ↩ mail-sj2pr05cu00300.inbound.protection.outlook.com
- 2a01:111:f403:c922::2 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
- 2a01:111:f403:c92c::1 ↩ mail-dm6pr03cu00401.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-157.awsdns-19.com awsdns-hostmaster.amazon.com 2025111401 7200 900 1209600 86400
Primary NS (mname)
ns-157.awsdns-19.com
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
2025111401
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-1844.awsdns-38.co.uk
ns-922.awsdns-51.net
ns-1318.awsdns-36.org
ns-157.awsdns-19.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:_spf1.thechicagoschool.edu include:_spf2.thechicagoschool.edu -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ 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 include:_spf1.thechicagoschool.edu include:_spf2.thechicagoschool.edu -all
- QM0P2BJ8QDCJSBVWO4C6OOQULQBDSRRIGWW6E0RW4
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