Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
structuretone.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 16:40:27 UTC · ↺ Refresh
MX Hostnames
- structuretone-com.mail.protection.outlook.com
MX Priorities
- structuretone-com.mail.protection.outlook.com: 10
A / AAAA Records
- 141.193.213.10 (no PTR)
Mail Server IPs
- 52.101.50.4 ↩ mail-co1pr03cu00404.inbound.protection.outlook.com
- 52.101.8.51 ↩ mail-dm1pr04cu00203.inbound.protection.outlook.com
- 52.101.9.12 ↩ mail-bl0pr05cu00504.inbound.protection.outlook.com
- 52.101.10.2 ↩ mail-bn8pr03cu00202.inbound.protection.outlook.com
- 2a01:111:f403:c902::14 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
- 2a01:111:f403:c946::1 ↩ mail-ch1pr04cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c903::3 ↩ mail-mw2pr02cu00503.inbound.protection.outlook.com
- 2a01:111:f403:f90a:: ↩ mail-bn6pr02cu00300.inbound.protection.outlook.com
SOA Record
Raw SOA
ns10.dnsmadeeasy.com dns.dnsmadeeasy.com 2009010412 43200 3600 1209600 180
Primary NS (mname)
ns10.dnsmadeeasy.com
Admin Email (rname)
dns@dnsmadeeasy.com
Serial
2009010412
Refresh
43200s
Retry
3600s
Expire
1209600s
Minimum TTL
180s
Nameservers (NS)
ns12.dnsmadeeasy.com
ns11.dnsmadeeasy.com
ns15.dnsmadeeasy.com
ns14.dnsmadeeasy.com
ns13.dnsmadeeasy.com
ns10.dnsmadeeasy.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:66.240.180.206/32 ip4:38.127.225.55/32 ip4:192.254.121.248 ip4:23.21.109.197 ip4:23.21.109.212 ip4:20.63.100.28 ip4:13.90.214.114 ip4:20.90.85.127 include:archivecloud.net include:servers.mcsv.net include:spf.protection.outlook.com include:_spf.salesforce.com include:spf.surveymonkey.com include:aspmx.pardot.com include:spf_c.oraclecloud.com -all
📊 DNS lookups: 7/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; sp=none; ri=86400
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
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
5 records- knowbe4-site-verification=fd692dd567cb8cc4b98370c581de4d0f
- apple-domain-verification=NI2lVl0IEq9h8K8w
- MS=ms15444138
- SPFv=spf1 ip4:66.240.180.206/32 ip4:38.127.225.55/32 ip4:192.254.121.248 ip4:23.21.109.197 ip4:23.21.109.212 ip4:20.63.100.28 ip4:13.90.214.114 ip4:20.90.85.127 include:archivecloud.net include:servers.mcsv.net include:spf.protection.outlook.com include:_spf.salesforce.com include:spf.surveymonkey.com include:aspmx.pardot.com include:spf_c.oraclecloud.com -all
- sending_domain997321=72eb716206a5ca4dcd6a9cf82c8cd66b181f6dfd8ff35715aa606e37e41f219c
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