duplacom.com.br

Valid Email Server
Domain Lookup › duplacom.com.br

Domain Overview

DNS: ✓ 20d ago Checker: ✓ 20d ago
duplacom.com.br
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-21 08:12:37 UTC · ↺ Refresh

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MX Hostnames

  • mx-ha.skymail.net.br

MX Priorities

  • mx-ha.skymail.net.br: 20

A / AAAA Records

  • 186.202.153.178 ↩ hm8333.locaweb.com.br

Mail Server IPs

  • 168.0.133.10 ↩ mx-ha.skymail.net.br

SOA Record

Raw SOA ns1.locaweb.com.br hostmaster.locaweb.com.br 2022031001 3600 600 1209600 3600
Primary NS (mname)
ns1.locaweb.com.br
Admin Email (rname)
hostmaster@locaweb.com.br
Serial
2022031001
Refresh
3600s
Retry
600s
Expire
1209600s
Minimum TTL
3600s

Nameservers (NS)

ns2.locaweb.com.br
ns1.locaweb.com.br
ns3.locaweb.com.br

SPF Record

✓ Soft Fail (~all)
v=spf1 include:2643471486.agenciapr.net include:spf.skymail.net.br include:_spf.locaweb.com.br ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; sp=none; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none

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

4 records
  • _globalsign-domain-verification=raJIwmh_2Kjyn7DGJG1rlCIFiO1aOp24bWZV2XpLc5
  • MS=ms53848381
  • SPFv=spf1 include:2643471486.agenciapr.net include:spf.skymail.net.br include:_spf.locaweb.com.br ~all
  • MS=ms90296642
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