Yes. You can verify any @Bol.com.br address in real time with a direct SMTP handshake that provides 99.7% accuracy. Bol.com.br is operated by UOL Group, runs 1 mail server, enforces 2 of 3 authentication standards, and is currently responding to SMTP.
Every check returns one of three clear outcomes so you know exactly what to do with the address.
The mailbox exists and accepts mail. Send with confidence, the address is deliverable.
The mailbox does not exist, is disposable, or will hard-bounce. Remove it to protect your sender reputation.
The server is catch-all or greylisting, so existence cannot be confirmed. Send selectively and watch engagement.
bol.com.br publishes 1 MX record. The primary mail exchanger is mx3.bol.com.br, hosted by com.br, and it is currently reachable and answering SMTP. Mail is routed through these servers in priority order, lowest number first.
| Priority | Hostname | IP | Status |
|---|---|---|---|
| 20 | mx3.bol.com.br | 200.147.41.201 | Reachable |
220 a2-selva3.bol.com.br ESMTPYes. bol.com.br is a valid email provider, operated by UOL Group. Addresses are persistent and real mail reaches a genuine recipient. Individual mailboxes still go stale, so verify each one before you send.
A live SMTP handshake connects to Bol.com.br's mail server and asks whether the mailbox exists using the RCPT TO command, without ever transmitting a message. The recipient never sees the check.
Each address runs through 30+ checks including SMTP existence, catch-all detection, role-account filtering, and disposable matching. The same engine has verified billions of addresses since 2012.
Every unverified address is a gamble. Here is what happens when you skip verification and mail a list that has not been cleaned.
Free inboxes get abandoned constantly. Verification drops the dead bol.com.br mailboxes before you mail them.
Mistyped bol.com.br addresses fail a real SMTP check, so they never turn into a hard bounce.
A clean list keeps your bounce rate low, and a low bounce rate is what protects inbox placement on a big send.
Mailing only live bol.com.br addresses raises every rate that matters: opens, clicks, and replies.
Bol.com.br is UOL Group and first seen May 16, 1995.
bol.com.br is a Brazilian free email service operated by UOL Group (Universo Online), the largest Brazilian internet content and services company headquartered in Sao Paulo. BOL (Brasil Online) has been providing email services to Brazilian users since the early days of the internet in Brazil, offering webmail with storage, spam filtering, and mobile access.
bol.com.br supports SPF authentication and DKIM signing for outbound emails through UOL's mail infrastructure. DMARC policies are published to help protect against spoofing. UOL maintains active anti-spam measures and complies with Brazilian data protection legislation (LGPD).
The bol.com.br mail servers enforce recipient verification at the SMTP level, rejecting messages to nonexistent addresses. The domain does not function as a catch-all. UOL's infrastructure applies rate limiting on inbound connections, particularly from international senders or those with limited reputation history.
When sending to bol.com.br users, configure SPF, DKIM, and DMARC on your sending domain. Portuguese-language content is handled natively, but ensure proper UTF-8 encoding for accented characters. Follow Brazilian anti-spam regulations and maintain opt-in consent records. UOL responds well to properly authenticated mail from reputable senders.
Upload a CSV or TXT list of Bol.com.br addresses to the bulk email verifier. Every address runs through a live SMTP handshake plus catch-all, role-account and disposable detection, and you download a clean list when processing completes. For real-time checks at signup, use the real-time email verification API.
CSV or TXT with one email per line. No formatting needed.
Each Bol.com.br address is checked with a live server handshake.
Get a verified list with status codes, risk flags, and catch-all detection.
Pay as you go. No subscriptions, and credits never expire.
Everything about verifying email at this domain.
Yes, bol.com.br is a valid free email domain operated by UOL Group. It provides permanent email accounts to users.
No, bol.com.br is not a disposable or temporary email provider. It offers permanent email accounts with standard email features.
bol.com.br uses mail servers operated by UOL Group. Check the MX records section above for specific server details.
Yes, with proper opt-in consent. Follow email best practices and ensure SPF, DKIM, and DMARC authentication is configured for your sending domain.
Use BulkEmailChecker to verify bol.com.br addresses via SMTP checks. Verification behavior varies by provider. Our tool handles provider-specific rate limiting automatically.
Upload a CSV or TXT list to the bulk email verifier. Every address runs through 30+ checks including SMTP existence, catch-all detection, role-account, and disposable matching. Processing time depends on list size.
99.7% accurate using a direct SMTP handshake with bol.com.br's mail servers, the same engine that has verified billions of addresses since 2012.
Other free email provider domains we have audited.