Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ibb.gatech.edu
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-26 13:20:21 UTC · ↺ Refresh
MX Hostnames
- ibb-gatech-edu.mail.protection.outlook.com
MX Priorities
- ibb-gatech-edu.mail.protection.outlook.com: 0
A / AAAA Records
- 130.207.49.16 ↩ web-plesk58.oit.gatech.edu
Mail Server IPs
- 52.101.10.1 ↩ mail-bn6pr02cu00301.inbound.protection.outlook.com
- 52.101.50.7 ↩ mail-co1pr21cu00207.inbound.protection.outlook.com
- 52.101.8.46 ↩ mail-dm6pr05cu00406.inbound.protection.outlook.com
- 52.101.50.10 ↩ mail-mw2pr02cu00502.inbound.protection.outlook.com
- 2a01:111:f403:f802::3 ↩ mail-sj0pr03cu01403.inbound.protection.outlook.com
- 2a01:111:f403:f802:: ↩ mail-byapr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:f901:: ↩ mail-mn2pr04cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c803:: ↩ mail-bn1pr21cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
dns1.gatech.edu hostmaster.gatech.edu 294 3600 600 1209600 3600
Primary NS (mname)
dns1.gatech.edu
Admin Email (rname)
hostmaster@gatech.edu
Serial
294
Refresh
3600s
Retry
600s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
dns1.gatech.edu
dns3.gatech.edu
dns2.gatech.edu
SPF Record
✓ Strict (-all)
v=spf1 include:spf.gatech.edu -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → 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- SPFv=spf1 include:spf.gatech.edu -all
- iM7awKHh4T8KnY1NtPsh0H/Vw0Ep38OYMmIVm9nJlN1bHZiG6y0nfcx5NSi0dXivK5lE+F1kP5XSL2cc0Egv+w==
- e2ma-verification=d7qgb
- google-site-verification=y6MqDNRrxi92qYRdNVOBTmWqfZ2WkPXCyTeQ4MMtj_w
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