Free UOL, BOL, Terra & Globo Email Verifier
Validate Brazilian consumer and SMB email addresses (@uol.com.br, @bol.com.br, @terra.com.br, @globo.com, @ig.com.br, @locaweb.com.br) with 100% LGPD compliance.
⚙️ Uol Terra Bol Email Verifier Telemetry Specs
UOL, BOL & Terra (BR) Live SMTP Handshake & MX Diagnostic
Supported domains: @uol.com.br, @bol.com.br, @terra.com.br, @globo.com, @ig.com.br & @r7.com
| SMTP Code / Response | KaijuVerifier Verdict | Technical Meaning |
|---|---|---|
| 250 2.1.5 Ok | Valid Brazilian Inbox | The UOL, BOL, Terra, or Locaweb mailbox is active and receiving email. |
| 550 5.1.1 <user>: Recipient address rejected: User unknown | Canceled / Invalid Account | The subscriber canceled their UOL/Terra plan or the @bol.com.br / @ig.com.br free account was deactivated. |
| 552 5.2.2 Quota exceeded | Caixa Lotada (Full Inbox) | The recipient's mailbox has reached its storage limit. |
| 450 / 554 UOL AntiSpam Tirateima | Challenge-Response Active | UOL's legacy Tirateima anti-spam filter is active on the mailbox; verified via non-intrusive RCPT TO without triggering CAPTCHAs. |
How We Verify UOL, BOL, Terra, Globo & IG (Brazil) Addresses
Why 70%+ of Legacy @ig.com.br & @globomail.com Addresses Bounce
When IG Mail and GloboMail discontinued free consumer tiers and transitioned to paid plans, millions of Brazilian email addresses became permanently invalid overnight. Scrubbing @ig.com.br and @bol.com.br segments is mandatory before importing into RD Station or HubSpot.
Verifying Brazilian Corporate Domains (`mx.uhserver.com` & Locaweb)
Hundreds of thousands of Brazilian SMBs host their `.com.br` corporate email on UOL Host (`mx.uhserver.com`), Locaweb, or KingHost. KaijuVerifier fingerprints these gateways and detects Catch-All configurations accurately.
Zero-Retention RAM Processing for Brazilian LGPD
All email verifications run in volatile memory without storing personal data on disk, ensuring full compliance with Brazil's Lei Geral de Proteção de Dados (LGPD).
Verify Other Email Providers & Regional ISPs
Frequently Asked Questions — UOL, BOL & Terra (BR) Verification
Does KaijuVerifier trigger UOL's AntiSpam Tirateima CAPTCHA?
No. UOL's Tirateima challenge-response system only triggers when an actual email message body (DATA) is transmitted. Because KaijuVerifier closes the connection right after the `RCPT TO` command without sending any message, the recipient never receives a notification or CAPTCHA.
Why are so many @bol.com.br and @ig.com.br emails invalid today?
IG discontinued its free webmail tier and BOL strictly purges inactive accounts. Any Brazilian database older than 12 months should be cleaned with KaijuVerifier before launching campaigns in RD Station, ActiveCampaign, or Mailchimp.