c3group.com

Valid Email Server
Domain Lookup › c3group.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
c3group.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-01 13:54:05 UTC · ↺ Refresh

MX Hostnames

  • c3group-com.mail.protection.outlook.com

MX Priorities

  • c3group-com.mail.protection.outlook.com: 0

A / AAAA Records

  • 23.236.62.147 ↩ 147.62.236.23.bc.googleusercontent.com

Mail Server IPs

  • 52.101.190.2 ↩ mail-yt3pr01cu00602.inbound.protection.outlook.com
  • 52.101.192.0 ↩ mail-yqzpr01cu00900.inbound.protection.outlook.com
  • 52.101.192.1 ↩ mail-yqzpr01cu01001.inbound.protection.outlook.com
  • 52.101.190.0 ↩ mail-yt5pr01cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:c942:: ↩ mail-yt5pr01cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:c944::1 ↩ mail-yqzpr01cu01001.inbound.protection.outlook.com
  • 2a01:111:f403:c944:: ↩ mail-yqzpr01cu00900.inbound.protection.outlook.com
  • 2a01:111:f403:c942::1 ↩ mail-yt3pr01cu00701.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.dreamhost.com hostmaster.dreamhost.com 2026032600 16327 600 1814400 60
Primary NS (mname)
ns1.dreamhost.com
Admin Email (rname)
hostmaster@dreamhost.com
Serial
2026032600
Refresh
16327s
Retry
600s
Expire
1814400s
Minimum TTL
60s

Nameservers (NS)

ns1.dreamhost.com
ns3.dreamhost.com
ns2.dreamhost.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:_netblocks.mimecast.com include:_spf.psm.knowbe4.com include:sendgrid.net ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected];
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✗ None detected

No 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

6 records
  • apple-domain-verification=OupI3cawK3okU1Dw
  • google-site-verification=jy0YO7o2JkYucPd7lLzMR0xY2WGaRXjr_O4wecjck_4
  • SPFv=spf1 include:spf.protection.outlook.com include:_netblocks.mimecast.com include:_spf.psm.knowbe4.com include:sendgrid.net ~all
  • knowbe4-site-verification=e3829c7fad54220ad8ea449d5ef518dd
  • apple-domain-verification=mDNfzfRwnFPNR4tS
  • MS=ms77944767
Full email verification for c3group.com

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