kubik.eng.br

Valid Email Server
Domain Lookup › kubik.eng.br

Domain Overview

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

Checked via [email protected] · 2026-04-02 11:10:53 UTC · ↺ Refresh

MX Hostnames

  • kubik-eng-br.mail.protection.outlook.com

MX Priorities

  • kubik-eng-br.mail.protection.outlook.com: 0

A / AAAA Records

  • 192.185.217.22 ↩ br236-ip04.hostgator.com.br

Mail Server IPs

  • 52.101.198.0 ↩ mail-cp5p284cu01800.inbound.protection.outlook.com
  • 52.101.200.0 ↩ mail-roap284cu02600.inbound.protection.outlook.com
  • 52.101.198.1 ↩ mail-cp4p284cu00401.inbound.protection.outlook.com
  • 52.101.198.38 ↩ mail-cp3p284cu00706.inbound.protection.outlook.com
  • 2a01:111:f403:c94c:: ↩ mail-roap284cu02600.inbound.protection.outlook.com
  • 2a01:111:f403:c94a::1 ↩ mail-cp4p284cu00401.inbound.protection.outlook.com
  • 2a01:111:f403:c94a:: ↩ mail-cp5p284cu01800.inbound.protection.outlook.com
  • 2a01:111:f403:c94a::2 ↩ mail-cp3p284cu00702.inbound.protection.outlook.com

SOA Record

Raw SOA ns236.hostgator.com.br dnsadmin.br236.hostgator.com.br 2026020101 86400 7200 3600000 86400
Primary NS (mname)
ns236.hostgator.com.br
Admin Email (rname)
dnsadmin@br236.hostgator.com.br
Serial
2026020101
Refresh
86400s
Retry
7200s
Expire
3600000s
Minimum TTL
86400s

Nameservers (NS)

ns237.hostgator.com.br
ns236.hostgator.com.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

✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

2 records
  • SPFv=spf1 include:spf.protection.outlook.com -all
  • MS=ms93369285
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