cd6.com.br

Valid Email Server
Domain Lookup › cd6.com.br

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
cd6.com.br
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-21 02:01:27 UTC · ↺ Refresh

MX Hostnames

  • mail.cd6.com.br

MX Priorities

  • mail.cd6.com.br: 0

A / AAAA Records

  • 186.209.113.149 ↩ br57-da.valueserver.net.br

Mail Server IPs

  • 186.209.113.149 ↩ br57-da.valueserver.net.br

SOA Record

Raw SOA fred.ns.cloudflare.com dns.cloudflare.com 2399040467 10000 2400 604800 1800
Primary NS (mname)
fred.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399040467
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

fred.ns.cloudflare.com
kay.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 a mx ip4:186.209.113.149 include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ 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

2 records
  • SPFv=spf1 a mx ip4:186.209.113.149 include:spf.protection.outlook.com -all
  • google-site-verification=QTVJvl1zlqWgFpichx_2d1O4DhF9SnHIyROfkeB2tZs
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