Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sandburg.edu
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 02:36:02 UTC · ↺ Refresh
MX Hostnames
- sandburg-edu.mail.protection.outlook.com
MX Priorities
- sandburg-edu.mail.protection.outlook.com: 0
A / AAAA Records
- 216.24.125.153 ↩ 153.125.24.216.sandburg.edu
Mail Server IPs
- 52.101.11.3 ↩ mail-sn1pr0501cu00103.inbound.protection.outlook.com
- 52.101.10.2 ↩ mail-bn8pr03cu00202.inbound.protection.outlook.com
- 52.101.40.0 ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 52.101.9.0 ↩ mail-bl2pr02cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c931::1 ↩ mail-sa9pr03cu00201.inbound.protection.outlook.com
- 2a01:111:f403:c946::5 ↩ mail-ch4pr21cu00105.inbound.protection.outlook.com
- 2a01:111:f403:c946::4 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
- 2a01:111:f403:f913:: ↩ mail-cy1pr03cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
mack.ns.cloudflare.com dns.cloudflare.com 2397951322 10000 2400 604800 1800
Primary NS (mname)
mack.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2397951322
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
mack.ns.cloudflare.com
rosa.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:9jqlyemc47.spf.director.tangent.com include:spf.protection.outlook.com include:mailgun.org ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; sp=none; rua=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]
↳ Subdomain policy: none
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
8 records- rj6p7nodq8cti41hbvfr05bt3p.
- SPFv=spf1 include:9jqlyemc47.spf.director.tangent.com include:spf.protection.outlook.com include:mailgun.org ~all
- 5CbcUUP/N8MRgiV9Km9luDYOF/w64k2OjonAJ+NY1VZ0AQvYnTeNpCBHN7BVgkuNZ6yF8G/H2BUKPoejjxHLrA==
- AppId=00000000400C1324
- RvHHSJLqQMDOTiCJ+ZgvUFC9Zsn9vPKdFoEx/oWnDt2DJ/0F4rhV5r+o0vyh/J0OqBEe+y/H5eGbVtc5dfS8PA==
- ZOOM_verify_6cCe1TQ9Q-ehkuXdcKhbCg
- apple-domain-verification=nD9KnDA817Xob2jI
- google-site-verification=mcaWkW3plb3C5eL8iXa7xh5nM7_P7gT03I6cZGsCm1M
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