Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
osborne.com.br
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-03 02:27:43 UTC · ↺ Refresh
MX Hostnames
- mx2.wcenter.net.br
- mx1.wcenter.net.br
- mx3.wcenter.net.br
- mx4.wcenter.net.br
MX Priorities
- mx2.wcenter.net.br: 10
- mx4.wcenter.net.br: 10
- mx3.wcenter.net.br: 10
- mx1.wcenter.net.br: 10
A / AAAA Records
- 162.240.169.212 ↩ vps-14008961.infronthost.com.br
Mail Server IPs
- 209.172.58.38 ↩ albatroz.birdsnet.com.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
ns3.locaweb.com.br
ns1.locaweb.com.br
SPF Record
✓ Strict (-all)
v=spf1 mx include:spf.protection.outlook.com include:mx1.wcenter.net.br include:mx2.wcenter.net.br include:mx3.wcenter.net.br include:mx4.wcenter.net.br -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- MS=ms39461836
- dCQQ4wYWF69q7bRPkUkWif9jU/hB941EdQWkeOId2Oj33AtJGG9qhzbr0cdRRjiU8UiYK9eowJiq0MAc1aXqAw==
- SPFv=spf1 mx include:spf.protection.outlook.com include:mx1.wcenter.net.br include:mx2.wcenter.net.br include:mx3.wcenter.net.br include:mx4.wcenter.net.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 osborne.com.br
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits