Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
stlucie.k12.fl.us
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-14 03:47:39 UTC · ↺ Refresh
MX Hostnames
- stlucie-k12-fl-us.mail.protection.outlook.com
MX Priorities
- stlucie-k12-fl-us.mail.protection.outlook.com: 0
A / AAAA Records
- 169.139.16.83 (no PTR)
- 150.176.128.83 (no PTR)
- 150.176.36.83
Mail Server IPs
- 52.101.50.1 ↩ mail-co1pr05cu00401.inbound.protection.outlook.com
- 52.101.9.21 ↩ mail-bl2pr04cu00205.inbound.protection.outlook.com
- 52.101.10.1 ↩ mail-bn6pr02cu00301.inbound.protection.outlook.com
- 52.101.10.2 ↩ mail-bn8pr03cu00202.inbound.protection.outlook.com
- 2a01:111:f403:f90b:: ↩ mail-bn6pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f90f::1 ↩ mail-sa9pr04cu00201.inbound.protection.outlook.com
- 2a01:111:f403:c902:: ↩ mail-sj2pr05cu00300.inbound.protection.outlook.com
- 2a01:111:f403:f804::1 ↩ mail-co1pr05cu00301.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1-07.azure-dns.com mail.stlucie.k12.fl.us 2018072502 28800 7200 604800 10
Primary NS (mname)
ns1-07.azure-dns.com
Admin Email (rname)
mail@stlucie.k12.fl.us
Serial
2018072502
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
10s
Nameservers (NS)
ns3-07.azure-dns.org
ns4-07.azure-dns.info
ns1-07.azure-dns.com
ns2-07.azure-dns.net
SPF Record
✓ Strict (-all)
v=spf1 a mx ip4:169.139.16.20 ip4:169.139.16.17 ip4:169.139.16.18 ip4:199.36.164.0/22 ip4:66.195.143.26 ip4:8.12.72.20 ip4:50.223.178.203 ip4:50.223.178.208 include:spf.protection.outlook.com include:customerspf.schoolmessenger.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected];
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
4 records- google-site-verification=BXbibwZd5snu0BpSRyVEdVgVaFPRGTPUKDm5tweNUrM
- MS=ms82705864
- oIm29sqLZASreiM+hUg1JVRd7mj1NXNjIqt7ZrQQ+ZclxmC2wDtf6LBdg/m63BEw/+QQQ9iwn/YcboInUKb0cw==
- SPFv=spf1 a mx ip4:169.139.16.20 ip4:169.139.16.17 ip4:169.139.16.18 ip4:199.36.164.0/22 ip4:66.195.143.26 ip4:8.12.72.20 ip4:50.223.178.203 ip4:50.223.178.208 include:spf.protection.outlook.com include:customerspf.schoolmessenger.com -all
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