3r-invest.com.br

Valid Email Server
Domain Lookup › 3r-invest.com.br

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
3r-invest.com.br
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-03 03:43:59 UTC · ↺ Refresh

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MX Hostnames

  • 3rinvest-com-br0e.mail.protection.outlook.com

MX Priorities

  • 3rinvest-com-br0e.mail.protection.outlook.com: 0

A / AAAA Records

  • 108.167.188.208 ↩ br400-ip04.hostgator.com.br

Mail Server IPs

  • 52.101.40.1 ↩ mail-cy4pr03cu00101.inbound.protection.outlook.com
  • 52.101.9.5 ↩ mail-mn2pr04cu00205.inbound.protection.outlook.com
  • 52.101.8.34 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
  • 52.101.11.3 ↩ mail-sn1pr0501cu00103.inbound.protection.outlook.com
  • 2a01:111:f403:f805::1 ↩ mail-co1pr03cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:c946::6 ↩ mail-ch5pr02cu00406.inbound.protection.outlook.com
  • 2a01:111:f403:f902::2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:c931:: ↩ mail-sn1pr02cu00100.inbound.protection.outlook.com

SOA Record

Raw SOA ns400.hostgator.com.br dnsadmin.br400.hostgator.com.br 2026020700 86400 7200 3600000 86400
Primary NS (mname)
ns400.hostgator.com.br
Admin Email (rname)
dnsadmin@br400.hostgator.com.br
Serial
2026020700
Refresh
86400s
Retry
7200s
Expire
3600000s
Minimum TTL
86400s

Nameservers (NS)

ns401.hostgator.com.br
ns400.hostgator.com.br

SPF Record

✓ Strict (-all)
v=spf1 ip4:108.179.241.38 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

1 record
  • SPFv=spf1 ip4:108.179.241.38 include:spf.protection.outlook.com -all
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