Clean your Brevo contacts before you import, instead of waiting for Brevo to blocklist them after they have already bounced and dented your reputation.
Clean my Brevo list, free Bulk verifier 100 free credits, no card. Pay only for Passed & Failed. Credits never expire.When you import to Brevo, it validates format only, not whether a mailbox actually exists. Brevo auto-blocklists addresses after they hard-bounce, which means the damage to your sender reputation is already done by the time it acts. Verifying before you import is the only way to keep bad addresses out in the first place. (Brevo was formerly Sendinblue; the workflow is the same.)
The specific ways an unverified Brevo list costs you money and deliverability.
Brevo suppresses addresses after a hard bounce, not before, so your reputation takes the hit first.
Brevo rejects malformed addresses on import but accepts valid-looking dead mailboxes, so your list quietly fills with future bounces.
Brevo plans are sized by contacts and sends, so storing and mailing dead addresses costs you money for no return.
The accurate, current steps, from export to a clean, safe-to-send list.
In Brevo go to Contacts, optionally load a list or segment or add a filter (for example, subscribed contacts), select the records and the attributes to include, choose a CSV separator, and Start export, then download from the notification bell.
Run it through Email Verifier API. Because Brevo only checks format, this is where non-existent, catch-all, role and disposable addresses are actually identified.
To suppress without losing history, import the failed addresses via Brevo's import a list of blocklisted contacts. To cut contact-count billing, delete the invalid contacts.
Call the API in real time as new contacts are captured so dead addresses never enter Brevo and never need blocklisting later.
What the native option does, and where real verification fills the gap.
| Capability | Brevo (native) | Email Verifier API |
|---|---|---|
| Checks if mailbox exists | No (format only) | Yes, live SMTP check |
| When it acts on bad addresses | After a hard bounce | Before you send |
| Catch-all & role detection | No | Yes, flagged clearly |
| Covers legacy Sendinblue lists | n/a | Yes, same workflow |
| Credits expire | n/a | Never |
Cleaning your Brevo list, answered.
Brevo checks format only. It rejects malformed addresses but accepts valid-looking ones that do not exist, and it only blocklists addresses after they hard-bounce. Verifying with Email Verifier API before import keeps the bad ones out from the start.
Yes. Brevo is the rebranded Sendinblue, and the export, verify and blocklist workflow is the same. This page covers both names.
Blocklist (via import a list of blocklisted contacts) to suppress them while keeping the record. Delete them if you want to reduce your contact-count billing and do not need the history.
Verify new contacts in real time with the API as they are captured, and re-verify your full list periodically, since business and consumer data both decay over time.
Pay-as-you-go, one credit per address, billed only for Passed and Failed results, credits never expire, and 100 free credits to start.
Start with 100 free credits, no credit card. See exactly how many of your Brevo contacts are about to bounce.
Verify my list free