duvon.com.br

Valid Email Server
Domain Lookup › duvon.com.br

Domain Overview

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

Checked via [email protected] · 2026-03-30 06:55:17 UTC · ↺ Refresh

MX Hostnames

  • mx.b.locaweb.com.br
  • mx.core.locaweb.com.br
  • mx.jk.locaweb.com.br
  • mx.a.locaweb.com.br

MX Priorities

  • mx.jk.locaweb.com.br: 20
  • mx.core.locaweb.com.br: 10
  • mx.a.locaweb.com.br: 20
  • mx.b.locaweb.com.br: 20

A / AAAA Records

  • 185.230.63.107 ↩ unalocated.63.wixsite.com

Mail Server IPs

  • 200.234.204.130 ↩ mx.jk.locaweb.com.br
  • 177.153.23.241 ↩ mx.core.locaweb.com.br
  • 186.202.4.42 ↩ mx.a.locaweb.com.br
  • 177.153.23.242 ↩ mx.b.locaweb.com.br

SOA Record

Raw SOA d.sec.dns.br hostmaster.registro.br 2026082000 86400 900 604800 900
Primary NS (mname)
d.sec.dns.br
Admin Email (rname)
hostmaster@registro.br
Serial
2026082000
Refresh
86400s
Retry
900s
Expire
604800s
Minimum TTL
900s

Nameservers (NS)

d.sec.dns.br
f.sec.dns.br

SPF Record

✓ Strict (-all)
v=spf1 include:_spf.locaweb.com.br -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

✗ 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

1 record
  • SPFv=spf1 include:_spf.locaweb.com.br -all
Free · No signup required
Add email validation to your forms

Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.

<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for duvon.com.br

SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.

No credit card required
Get 1,000 Free Credits