cec.com.br

Valid Email Server
Domain Lookup › cec.com.br

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
cec.com.br
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-20 16:11:26 UTC · ↺ Refresh

MX Hostnames

  • cec-com-br.mail.protection.outlook.com

MX Priorities

  • cec-com-br.mail.protection.outlook.com: 0

A / AAAA Records

  • 200.232.255.156 ↩ 200-232-255-156.dsl.telesp.net.br

Mail Server IPs

  • 52.101.8.34 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
  • 52.101.194.19 ↩ mail-ch5pr02cu00303.inbound.protection.outlook.com
  • 52.101.9.5 ↩ mail-mn2pr04cu00205.inbound.protection.outlook.com
  • 52.101.11.9 ↩ mail-sn1pr02cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:f908:: ↩ mail-bn1pr21cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:c902::5 ↩ mail-sj2pr05cu00505.inbound.protection.outlook.com
  • 2a01:111:f403:c946:: ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:f908::1 ↩ mail-bn1pr04cu00101.inbound.protection.outlook.com

SOA Record

Raw SOA e.sec.dns.br hostmaster.registro.br 2026055000 86400 900 604800 900
Primary NS (mname)
e.sec.dns.br
Admin Email (rname)
hostmaster@registro.br
Serial
2026055000
Refresh
86400s
Retry
900s
Expire
604800s
Minimum TTL
900s

Nameservers (NS)

e.sec.dns.br
f.sec.dns.br

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ 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

1 record
  • SPFv=spf1 include:spf.protection.outlook.com -all
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