sigmacognition.ai

Valid Email Server
Domain Lookup › sigmacognition.ai

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
sigmacognition.ai
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-28 15:46:28 UTC · ↺ Refresh

MX Hostnames

  • sigmacognition-ai.mail.protection.outlook.com

MX Priorities

  • sigmacognition-ai.mail.protection.outlook.com: 0

A / AAAA Records

  • 185.158.133.1 (no PTR)

Mail Server IPs

  • 52.101.68.39 ↩ mail-db7pr03cu00607.inbound.protection.outlook.com
  • 52.101.73.8 ↩ mail-am0pr04cu00500.inbound.protection.outlook.com
  • 52.101.73.15 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
  • 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::6 ↩ mail-am4pr0401cu00106.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::9 ↩ mail-db7pr03cu00601.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::4 ↩ mail-db4pr02cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::5 ↩ mail-am1pr04cu00105.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.dondominio.com dnsadmin.dondominio.com 2026032606 10800 1800 691200 3600
Primary NS (mname)
ns1.dondominio.com
Admin Email (rname)
dnsadmin@dondominio.com
Serial
2026032606
Refresh
10800s
Retry
1800s
Expire
691200s
Minimum TTL
3600s

Nameservers (NS)

ns1.dondominio.com
ns2.dondominio.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:relay.mailchannels.net -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 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
  • DMARCv=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1; pct=100
  • MS=ms75195719
  • atlassian-domain-verification=HrIeNpTTXgmjg3liFDEB55hC8EGGsPLrSIaW9CQuqtIoarWZ220zfc/zfDqeejCC
  • SPFv=spf1 include:spf.protection.outlook.com include:relay.mailchannels.net -all
  • google-site-verification=yYMcag2vTNVC1-kbE40KEytMU8gMMpRaqoD_FtH-R6U
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