ceo.do

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

Domain Overview

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

Checked via [email protected] · 2026-05-21 04:23:20 UTC · ↺ Refresh

MX Hostnames

  • ceo-do.mail.protection.outlook.com

MX Priorities

No priority data.

A / AAAA Records

  • 173.236.230.49

Mail Server IPs

No IPs resolved.

SOA Record

No SOA record found.

Nameservers (NS)

ns1-08.azure-dns.com
ns2-08.azure-dns.net
ns3-08.azure-dns.org
ns4-08.azure-dns.info

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.smtp2go.com include:spf.zoho.com include:transmail.net -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; pct=100; ruf=mailto:[email protected];rua=mailto:[email protected],mailto:[email protected];
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],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

1 record
  • SPFv=spf1 include:spf.protection.outlook.com include:spf.smtp2go.com include:spf.zoho.com include:transmail.net -all
Full email verification for ceo.do

Run SMTP check, SPF/DKIM/DMARC and catch-all detection.

SPF / DKIM / DMARC Get 1,000 Free Credits