Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
c3.ai
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 00:34:35 UTC · ↺ Refresh
MX Hostnames
- c3-ai.mail.protection.outlook.com
MX Priorities
- c3-ai.mail.protection.outlook.com: 0
A / AAAA Records
- 151.101.193.210 (no PTR)
- 151.101.65.210 (no PTR)
- 151.101.1.210
- 151.101.129.210
- 2a04:4e42:200::466
- 2a04:4e42:400::466
- 2a04:4e42:600::466
- 2a04:4e42::466
Mail Server IPs
- 52.101.8.44 ↩ mail-dm5pr04cu00104.inbound.protection.outlook.com
- 52.101.40.1 ↩ mail-cy4pr03cu00101.inbound.protection.outlook.com
- 52.101.41.22 ↩ mail-sj2pr05cu00406.inbound.protection.outlook.com
- 52.101.8.42 ↩ mail-dm6pr03cu00402.inbound.protection.outlook.com
- 2a01:111:f403:f90f:: ↩ mail-sa9pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c902::4 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
- 2a01:111:f403:c936:: ↩ mail-cy1pr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:c946::7 ↩ mail-ch5pr02cu00307.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-292.awsdns-36.com awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-292.awsdns-36.com
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-996.awsdns-60.net
ns-1038.awsdns-01.org
ns-1771.awsdns-29.co.uk
ns-292.awsdns-36.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:mail.zendesk.com include:mktomail.com include:spf.emailsignatures365.com include:sendgrid.net include:servers.mcsv.net include:email.formspro.microsoft.com include:amazonses.com include:_spf.psm.knowbe4.com -all
📊 DNS lookups: 9/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;rua=mailto:[email protected];ruf=mailto:[email protected];fo=1;pct=100;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
k1._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: k1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
9 records- anthropic-domain-verification-dcnwt2=e9XqIhEgmtGzuKTP00umXspkQ
- apple-domain-verification=a36pBqb2VFNE-j2dIZ7hkWhwiEPMP_CQkTPgHXraG0I
- atlassian-domain-verification=ZYIrPsRKUqJ7sCJumUDZ3eFnaBa6MbjPHGpddmfSYEt9FRiMvSFPCDi5ZlR2HUa8
- cursor-domain-verification-ze5nf9=lxxQIb2jIjXZeJihDTiiHZk8g
- docusign=9b8002b8-30e7-46bc-9e0a-2c4de99fc7e6
- google-site-verification=FFNWGrIUy-qkoMx52sIlyZY9zkXt-XPSR84YagJ-_Jo
- SPFv=spf1 include:spf.protection.outlook.com include:mail.zendesk.com include:mktomail.com include:spf.emailsignatures365.com include:sendgrid.net include:servers.mcsv.net include:email.formspro.microsoft.com include:amazonses.com include:_spf.psm.knowbe4.com -all
- 5bopkaoasn414kku5vrkbp1l3d
- MS=ms92682468
Full email verification for c3.ai
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