ctsco.com

Valid Email Server
Domain Lookup › ctsco.com
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
ctsco.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-06-03 08:57:42 UTC · ↺ Refresh

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MX Hostnames

  • ctsco-com.mail.protection.outlook.com
  • mx1-us1.ppe-hosted.com
  • mx2-us1.ppe-hosted.com

MX Priorities

  • ctsco-com.mail.protection.outlook.com: 20
  • mx1-us1.ppe-hosted.com: 0
  • mx2-us1.ppe-hosted.com: 10

A / AAAA Records

  • 151.101.2.159

Mail Server IPs

  • 52.101.41.4 ↩ mail-sj2pr05cu00204.inbound.protection.outlook.com
  • 52.101.10.5 ↩ mail-bn6pr04cu00105.inbound.protection.outlook.com
  • 52.101.40.1 ↩ mail-cy4pr03cu00101.inbound.protection.outlook.com
  • 52.101.9.12 ↩ mail-bl0pr05cu00504.inbound.protection.outlook.com
  • 2a01:111:f403:c946:: ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:c922::2 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
  • 2a01:111:f403:c946::1 ↩ mail-ch1pr04cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:c946::7 ↩ mail-ch5pr02cu00307.inbound.protection.outlook.com
  • 67.231.154.162 ↩ mx1-us1.ppe-hosted.com
  • 148.163.129.50 ↩ mx1-us1.ppe-hosted.com
  • 148.163.129.51
  • 67.231.154.163

SOA Record

Raw SOA ns51.worldnic.com namehost.worldnic.com 126032417 10800 3600 604800 3600
Primary NS (mname)
ns51.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126032417
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns52.worldnic.com
ns51.worldnic.com

SPF Record

✓ Soft Fail (~all)
v=spf1 a:dispatch-us.ppe-hosted.com ip4:24.248.110.4 include:spf.protection.outlook.com ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; pct=100;
~ Quarantine — good protection (failing mail goes to spam)
📋 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

3 records
  • ppe-3f6a2ebf7261ca797ed9a3accd0f19a55d344a43
  • MS=7D2172D902F46452D97CA32E53BE3084288F2D6B
  • SPFv=spf1 a:dispatch-us.ppe-hosted.com ip4:24.248.110.4 include:spf.protection.outlook.com ~all
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