Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
structuresi.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 22:53:05 UTC · ↺ Refresh
MX Hostnames
- structuresi-com.mail.protection.outlook.com
MX Priorities
- structuresi-com.mail.protection.outlook.com: 10
A / AAAA Records
- 104.21.72.156 (no PTR)
- 172.67.152.115 (no PTR)
- 2606:4700:3035::ac43:9873
- 2606:4700:3033::6815:489c
Mail Server IPs
- 52.101.8.46 ↩ mail-dm6pr05cu00406.inbound.protection.outlook.com
- 52.101.9.14 ↩ mail-bl0pr03cu00206.inbound.protection.outlook.com
- 52.101.10.18 ↩ mail-bn8pr05cu00302.inbound.protection.outlook.com
- 52.101.11.17 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
- 2a01:111:f403:f902:: ↩ mail-bl2pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f901:: ↩ mail-mn2pr04cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f804::1 ↩ mail-co1pr05cu00301.inbound.protection.outlook.com
- 2a01:111:f403:c902::1 ↩ mail-sj2pr05cu00401.inbound.protection.outlook.com
SOA Record
Raw SOA
ingrid.ns.cloudflare.com dns.cloudflare.com 2399815719 10000 2400 604800 1800
Primary NS (mname)
ingrid.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399815719
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
ingrid.ns.cloudflare.com
norman.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com ip4:162.254.27.243 -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
2 records- SPFv=spf1 include:spf.protection.outlook.com ip4:162.254.27.243 -all
- ms=ms70673627
Full email verification for structuresi.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits