Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
debronbier.com.br
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-29 07:52:29 UTC · ↺ Refresh
MX Hostnames
- smtprin1.f1.k8.com.br
MX Priorities
- smtprin1.f1.k8.com.br: 10
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
- 187.73.32.131 ↩ smtprin1.f1.k8.com.br
SOA Record
Raw SOA
nsa1.k8.com.br dnsmasters.k8.com.br 354 3600 300 604800 3600
Primary NS (mname)
nsa1.k8.com.br
Admin Email (rname)
dnsmasters@k8.com.br
Serial
354
Refresh
3600s
Retry
300s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
nsa4.k8.com.br
nsa5.k8.com.br
nsa6.k8.com.br
nsa1.k8.com.br
nsa2.k8.com.br
nsa3.k8.com.br
SPF Record
✓ Strict (-all)
v=spf1 a:mxr.f1.k8.com.br -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 216 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- MS=0354DB56AFD124289E673EA74C583AC87507CB98
- SPFv=spf1 a:mxr.f1.k8.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 debronbier.com.br
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits