Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
boavistatecnologia.com.br
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-03 04:39:47 UTC · ↺ Refresh
MX Hostnames
- boavistatecnologia-com-br.mail.protection.outlook.com
MX Priorities
- boavistatecnologia-com-br.mail.protection.outlook.com: 0
A / AAAA Records
- 64.181.186.251 (no PTR)
Mail Server IPs
- 52.101.200.0 ↩ mail-roap284cu02600.inbound.protection.outlook.com
- 52.101.198.0 ↩ mail-cp5p284cu01800.inbound.protection.outlook.com
- 52.101.198.1 ↩ mail-cp4p284cu00401.inbound.protection.outlook.com
- 52.101.198.38 ↩ mail-cp3p284cu00706.inbound.protection.outlook.com
- 2a01:111:f403:c94c:: ↩ mail-roap284cu02600.inbound.protection.outlook.com
- 2a01:111:f403:c94a::1 ↩ mail-cp4p284cu00401.inbound.protection.outlook.com
- 2a01:111:f403:c94a:: ↩ mail-cp5p284cu01800.inbound.protection.outlook.com
- 2a01:111:f403:c94a::2 ↩ mail-cp3p284cu00702.inbound.protection.outlook.com
SOA Record
Raw SOA
a.sec.dns.br hostmaster.registro.br 2026089001 345600 900 604800 900
Primary NS (mname)
a.sec.dns.br
Admin Email (rname)
hostmaster@registro.br
Serial
2026089001
Refresh
345600s
Retry
900s
Expire
604800s
Minimum TTL
900s
Nameservers (NS)
b.sec.dns.br
a.sec.dns.br
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.rdstation.com.br include:sendgrid.net include:app.sensedata.com.br include:spf.protection.outlook.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; sp=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine
DKIM Selectors
✓ 5 found
selector1._domainkey
selector2._domainkey
mail._domainkey
s1._domainkey
s2._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
3 records- google-gws-recovery-domain-verification=69629857
- uber-domain-verification=08ba3e9e-6a3f-4002-8b64-656d8f0c7494
- SPFv=spf1 include:_spf.rdstation.com.br include:sendgrid.net include:app.sensedata.com.br include:spf.protection.outlook.com -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 boavistatecnologia.com.br
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits