Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
insteo.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-29 03:36:44 UTC · ↺ Refresh
MX Hostnames
- insteo-com.mail.protection.outlook.com
MX Priorities
- insteo-com.mail.protection.outlook.com: 0
A / AAAA Records
- 172.67.214.128 (no PTR)
- 104.21.86.41 (no PTR)
- 2606:4700:3033::6815:5629
- 2606:4700:3030::ac43:d680
Mail Server IPs
- 52.101.9.17 (no PTR)
- 52.101.194.15 ↩ mail-ch4pr21cu00107.inbound.protection.outlook.com
- 52.101.194.13 ↩ mail-ch0pr04cu00605.inbound.protection.outlook.com
- 52.101.9.20 ↩ mail-bl0pr02cu00604.inbound.protection.outlook.com
- 2a01:111:f403:c922:: ↩ mail-bl0pr03cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c946::3 ↩ mail-ch0pr04cu00603.inbound.protection.outlook.com
- 2a01:111:f403:f802::1 ↩ mail-sj2pr05cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f908:: ↩ mail-bn1pr21cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
aiden.ns.cloudflare.com dns.cloudflare.com 2397444816 10000 2400 604800 1800
Primary NS (mname)
aiden.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2397444816
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
aiden.ns.cloudflare.com
may.ns.cloudflare.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- v=verifydomain MS=1979461
- 24qddfr4hnc9jrpa1ri58ot1nu
- SPFv=spf1 include:spf.protection.outlook.com -all
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