dualsys.com.br

Valid Email Server
Domain Lookup › dualsys.com.br

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
dualsys.com.br
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-23 18:46:49 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 162.241.60.224 ↩ 162-241-60-224.unifiedlayer.com

Mail Server IPs

  • 52.101.9.12 ↩ mail-bl0pr05cu00504.inbound.protection.outlook.com
  • 52.101.41.6 ↩ mail-sj0pr03cu01406.inbound.protection.outlook.com
  • 52.101.10.6 ↩ mail-bn1pr21cu00106.inbound.protection.outlook.com
  • 52.101.50.7 ↩ mail-co1pr21cu00207.inbound.protection.outlook.com
  • 2a01:111:f403:f90a::1 ↩ mail-bn8pr03cu00201.inbound.protection.outlook.com
  • 2a01:111:f403:c901::1 ↩ mail-bl2pr04cu00201.inbound.protection.outlook.com
  • 2a01:111:f403:c927:: ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:c801:: ↩ mail-sa9pr02cu00200.inbound.protection.outlook.com

SOA Record

Raw SOA nspro26.hostgator.com.br root.sh-pro26.hostgator.com.br 2026032200 86400 7200 3600000 86400
Primary NS (mname)
nspro26.hostgator.com.br
Admin Email (rname)
root@sh-pro26.hostgator.com.br
Serial
2026032200
Refresh
86400s
Retry
7200s
Expire
3600000s
Minimum TTL
86400s

Nameservers (NS)

nspro27.hostgator.com.br
nspro26.hostgator.com.br

SPF Record

✓ Strict (-all)
v=spf1 +a +mx +ip4:162.241.60.220 +ip4:162.241.60.224 +include:spf.protection.outlook.com +include:mail.zendesk.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✓ 3 found
selector1._domainkey
selector2._domainkey
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1

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

All TXT Records

1 record
  • SPFv=spf1 +a +mx +ip4:162.241.60.220 +ip4:162.241.60.224 +include:spf.protection.outlook.com +include:mail.zendesk.com -all
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