Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
structum-co.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 08:21:00 UTC · ↺ Refresh
MX Hostnames
- structumco-com02b.mail.protection.outlook.com
MX Priorities
- structumco-com02b.mail.protection.outlook.com: 0
A / AAAA Records
- 198.71.233.163 ↩ 163.233.71.198.host.secureserver.net
Mail Server IPs
- 52.101.9.24 ↩ mail-bl2pr02cu00400.inbound.protection.outlook.com
- 52.101.42.18 ↩ mail-co1pr03cu00302.inbound.protection.outlook.com
- 52.101.41.6 ↩ mail-sj0pr03cu01406.inbound.protection.outlook.com
- 52.101.194.12 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
- 2a01:111:f403:c902::5 ↩ mail-sj2pr05cu00505.inbound.protection.outlook.com
- 2a01:111:f403:f903:: (no PTR)
- 2a01:111:f403:f90f:: ↩ mail-sa9pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f908:: ↩ mail-bn1pr21cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
dns1.name-services.com info.name-services.com 1662042684 172800 900 1814400 3600
Primary NS (mname)
dns1.name-services.com
Admin Email (rname)
info@name-services.com
Serial
1662042684
Refresh
172800s
Retry
900s
Expire
1814400s
Minimum TTL
3600s
Nameservers (NS)
dns2.name-services.com
dns1.name-services.com
dns5.name-services.com
dns4.name-services.com
dns3.name-services.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- SPFv=spf1 include:spf.protection.outlook.com -all
- MS=ms58270229
- eup4m9fmqjrquob6rjhho9cucb
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