Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
lonestar.edu
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-22 22:45:15 UTC · ↺ Refresh
MX Hostnames
- lonestar-edu.mail.protection.outlook.com
MX Priorities
- lonestar-edu.mail.protection.outlook.com: 10
A / AAAA Records
- 216.7.255.117 ↩ lonestar.edu
Mail Server IPs
- 52.101.11.10 ↩ mail-sa9pr03cu00202.inbound.protection.outlook.com
- 52.101.9.17 (no PTR)
- 52.101.50.1 ↩ mail-co1pr05cu00401.inbound.protection.outlook.com
- 52.101.10.1 ↩ mail-bn6pr02cu00301.inbound.protection.outlook.com
- 2a01:111:f403:f802::1 ↩ mail-sj2pr05cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c946::6 ↩ mail-ch5pr02cu00406.inbound.protection.outlook.com
- 2a01:111:f403:c946:: ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c91d::a ↩ mail-co1pr21cu00202.inbound.protection.outlook.com
SOA Record
Raw SOA
lswxdnsmtr101p.lsc.lonestar.edu hostmaster.lonestar.edu 2448 900 600 604800 3600
Primary NS (mname)
lswxdnsmtr101p.lsc.lonestar.edu
Admin Email (rname)
hostmaster@lonestar.edu
Serial
2448
Refresh
900s
Retry
600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
lscns1.lonestar.edu
disns2.lonestar.edu
lscns3.lonestar.edu
disns3.lonestar.edu
disns4.lonestar.edu
lscns2.lonestar.edu
lscns4.lonestar.edu
disns1.lonestar.edu
SPF Record
✓ Strict (-all)
v=spf1 a mx ip4:216.7.224.0/22 ip4:216.7.252.0/22 include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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
7 records- formstack-domain-verification=b13184d7985b87d5184ede58e2b0ac77
- d8YeSR0bW+01aluhEzBOXLiOI2gmgc4E8vgLlgbtRfh8RLjGVGLWcD4iHE0q74TebyWWJC6d0VET2gBpUn5nAQ==
- apple-domain-verification=WQn2Cts5fDNZSbBx
- adobe-idp-site-verification=e8b82538-7564-41ee-8fd3-7c3cbb32757b
- SPFv=spf1 a mx ip4:216.7.224.0/22 ip4:216.7.252.0/22 include:spf.protection.outlook.com -all
- 5125f4abd00cad165b1e6e59be6c9c745f2aa54aa398e89df1ab71c2bdbf9e23
- ZOOM_verify_OczNd8qNQvicaM6-KfyK0Q
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