Brevo (Sendinblue) Email
Verification Integration
Connect your Brevo account to ValidEmailChecker and verify your contact lists without exporting a single file. Paste your API key, select a list, and start cleaning — protecting your sender score and keeping your bounce rates low across email, SMS, and CRM.
Connect Brevo (Sendinblue)
Enter your API key to get started
Connection Name
Brevo API Key
Where to find:Settings → SMTP & API → API keys & MCP → Generate new API key
What You Need to Get Started
Brevo Account
Free or paid plan.
API Key
Settings → SMTP & API → API keys & MCP.
Verification Credits
1 credit per email verified.
60 Seconds
Paste your key and you are connected.
How to Connect Brevo
One API key, three clicks, and you are verifying.
Generate Your API Key
Log into your Brevo account and click your account name in the top-right corner. Select Settings, then navigate to SMTP & API in the left sidebar under Organization settings. Click the API keys & MCP tab, then click Generate a new API key. Give it a name like "Valid Email Checker Integration" and click Generate.
Important: Brevo only shows your API key once when you create it. Copy it immediately and store it somewhere safe. If you lose it, you will need to generate a new one.
Connect Your Account
In ValidEmailChecker, go to Integrations and click + Connect Integration. Select Sendinblue (Brevo), enter a friendly connection name like "Main Brevo Account," paste your API Key, and click Connect Account. We validate your key instantly and pull in your available lists.
Select a List and Configure
Once connected, you will see all your Brevo lists with contact counts. Select the list you want to verify, then choose Verify Only to review results without changes, or Clean Automatically to remove invalid and disposable emails directly from Brevo. You control what happens to each email type — unsubscribe, delete, or keep.
Tip:"Delete" is permanent in Brevo and cannot be undone. Start with "Verify Only" on your first run, or choose "Unsubscribe" to preserve contacts while preventing them from receiving emails.
Track Results in Real Time
Click Import Listand you will be redirected to the Uploads & Results page. Progress updates automatically — no refreshing needed. When complete, you get a full breakdown of safe, invalid, risky, disposable, catch-all, and more. If you chose automatic cleaning, changes are already applied to your Brevo list.
Want a visual walkthrough with screenshots?
Our help center has the full guide with images for every screen.
Two Ways to Verify
Verify Only
Import and verify without modifying anything in Brevo. Review results and decide what to do next.
Best for:
Clean Automatically Recommended
Verify and clean in one step. Invalid emails get unsubscribed or deleted directly from Brevo.
Actions available:
Tracking Your Verification Progress
Everything updates in real time on the Uploads & Results page.
Processing
Verification in progress
Completed
Click "View Results" for breakdown
With Warning
Some emails could not be processed
Failed
Something went wrong (rare)
Managing Your Brevo Connection
Connection Actions
Click the three-dot menu next to any connection:
Sync Now
Refresh lists and contact counts from Brevo.
Rename
Change the connection display name.
Delete
Remove connection. Does not affect your Brevo account.
Updating your API key? If you revoke or regenerate your key in Brevo, delete the existing connection in ValidEmailChecker and create a new one with the new key.
Multiple Accounts
Managing multiple Brevo accounts? Connect as many as you need.
Go to Bulk Upload → Connect Email Platform → Sendinblue (Brevo)
Click "+ Add Another Account" in the connection picker
Enter the API key for the new account
Give it a unique name to tell them apart
Example names: "Brevo — Main Account," "Brevo — Client ABC," "Brevo — Newsletter." Each connection must have a unique name.
Credits & Billing
1 Credit = 1 Email
Same rate as all other methods.
Unknown = Refunded
Credits returned for unverifiable emails.
Duplicates = Free
Removed before charging.
Connecting = Free
Syncing never uses credits.
Brevo Tips
Sendinblue to Brevo
Sendinblue rebranded to Brevo in 2023. The platform is the same — just a fresh name and look. You may still see "Sendinblue" in parts of the interface, and that is perfectly normal. Your existing account works as-is.
Unsubscribe vs Delete
List Count Differences
Contact counts may differ slightly from Brevo due to recent additions not yet synced, duplicate deduplication, or blocklisted and unsubscribed contacts. Use Sync Now to refresh the latest counts.
Troubleshooting
"Invalid API Key" Error
Make sure you copied the full API key without missing characters. Check that the key has not been deleted or revoked in Brevo. Go to Settings → SMTP & API → API keys & MCP and generate a new key if needed.
No Lists Appearing
Log into Brevo and check Contacts → Lists to ensure you have at least one list with contacts. Verify your API key has the correct permissions. Click Sync Now in ValidEmailChecker to refresh.
Connection Works But Import Fails
Check your ValidEmailChecker credit balance — you need enough credits for the list size. Verify the list has contacts in Brevo. For very large lists, try during off-peak hours.
List Count Does Not Match Brevo
Contact counts may differ due to recent additions not yet synced, duplicate deduplication, or blocklisted contacts. Click Sync Now to refresh the latest counts from Brevo.
Best Practices
Before Your First Run
Ongoing Hygiene
Recommended Actions
Frequently Asked Questions
Only if you choose "Clean list automatically." With "Verify only," we just read and verify — no changes are made to your Brevo account whatsoever.
Yes. Sendinblue rebranded to Brevo in 2023 — the platform is the same. Your existing Sendinblue account works perfectly with this integration. You may still see "Sendinblue" in parts of the interface, and that is completely normal.
No. Connecting and syncing your Brevo account is completely free. You only use credits when you actually verify emails — 1 credit per email, same as every other verification method.
Yes. Connect as many accounts as you need — one for each brand, client, or team. Each gets its own named connection so you can tell them apart in the dashboard. Each connection needs a unique name.
Contacts are permanently removed from your Brevo list. They will not appear in that list anymore and cannot be recovered through ValidEmailChecker. If you are unsure, use "Unsubscribe" instead — it preserves the contact but prevents them from receiving emails.
Yes. After verification completes, you can download results in CSV, XLSX, JSON, or TXT format from the Uploads and Results page.
Currently, you verify one list at a time. This gives you more control and lets you prioritize your most important lists first. You can verify multiple lists back-to-back without reconnecting.
Ready to Clean Your Brevo Lists?
Sign up, paste your API key, and verify your first list in under two minutes. 200 free credits included — no credit card required.
Get Started Free200 free credits · No credit card · Results in minutes