c1secure.com

Valid Email Server
Domain Lookup › c1secure.com

Domain Overview

DNS: ✓ 20d ago Checker: ✓ 20d ago
c1secure.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-20 23:39:13 UTC · ↺ Refresh

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MX Hostnames

  • c1secure-com.mail.protection.outlook.com

MX Priorities

  • c1secure-com.mail.protection.outlook.com: 0

A / AAAA Records

  • 206.189.203.219 (no PTR)

Mail Server IPs

  • 52.101.10.5 ↩ mail-bn6pr04cu00105.inbound.protection.outlook.com
  • 52.101.10.1 ↩ mail-bn6pr02cu00301.inbound.protection.outlook.com
  • 52.101.9.2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
  • 52.101.41.22 ↩ mail-sj2pr05cu00406.inbound.protection.outlook.com
  • 2a01:111:f403:c801:: ↩ mail-sa9pr02cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:c92c::2 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:c946::3 ↩ mail-ch0pr04cu00603.inbound.protection.outlook.com
  • 2a01:111:f403:c92c::1 ↩ mail-dm6pr03cu00401.inbound.protection.outlook.com

SOA Record

Raw SOA dns101.register.com root.register.com 126032517 10800 3600 604800 3600
Primary NS (mname)
dns101.register.com
Admin Email (rname)
root@register.com
Serial
126032517
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

dns101.register.com
dns102.register.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:aspmx.pardot.com -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

✗ 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

8 records
  • google-site-verification=NTCWwK-lMOshVHqySFdH12SvtMOUUtafEUZFo3N4IH4
  • 8egfnafsg71provhkurmf2uva
  • google-site-verification=YqPAeLPkLqzJi3T2HTwKPGLf_reaIdSS-4QHN383tCw
  • MS=ms44967901
  • google-gws-recovery-domain-verification=61384406
  • anthropic-domain-verification-p74ww7=IXBvjOsCRgEsM15dwuGjCdMyl
  • MS=ms20875263
  • SPFv=spf1 include:spf.protection.outlook.com include:aspmx.pardot.com -all
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