Mailjet Email Verification - Protect Your Sender Score

Mailjet's Bounce Threshold
Will Pause Your Account.

Mailjet enforces hard bounce limits and can suspend accounts that exceed them. Invalid contacts in your list generate bounces on every send - damaging your sender score with Mailjet and with inbox providers. BounceZero removes them first - $3 per 1,000 verifications.

Start Free - 100 Credits See Pricing

Works with all Mailjet plans $3/1,000 verifications Both EU companies - full GDPR alignment

Backed by & listed on

Listed

AWS

Activate

Google

for Startups

NVIDIA

Inception

MongoDB

Atlas

Datadog

Startup Program

UK Ltd Co.

No. 17153835

Listed

AWS

Activate

Google

for Startups

NVIDIA

Inception

MongoDB

Atlas

Datadog

Startup Program

UK Ltd Co.

No. 17153835

How to Verify Your Mailjet List

Export from Mailjet

Contacts > Contact Lists > select list > Export. Download the CSV.

Upload to BounceZero

Create a free account and upload your CSV in Bulk Verification. BounceZero auto-detects the email column.

Run 5-stage verification

Syntax, DNS/MX, live SMTP mailbox, provider intelligence, and ML scoring. 65+ signals per address.

Download clean results

Filter to Deliverable. Invalid, Disposable, and Role addresses are flagged separately.

Reimport and exclude invalids

Reimport your clean list to Mailjet. Add invalid addresses to Mailjet's exclusion list (Contact Lists > Exclusion List) to permanently block them from future sends.

Frequently Asked Questions

Why verify my Mailjet list?

Mailjet suspends accounts exceeding hard bounce thresholds and tracks sender reputation per account. BounceZero removes invalids before they generate bounces that risk your account.

How do I export a Mailjet contact list?

Contacts > Contact Lists > select list > Export. Download the CSV and upload to BounceZero.

Does BounceZero connect to Mailjet?

Via Zapier or REST API - verify new subscribers on form submit or batch-verify existing lists via CSV before campaigns.

Are both Mailjet and BounceZero GDPR compliant?

Yes - Mailjet is EU-hosted and BounceZero is UK-hosted with ICO registration ZC132839 and CSA STAR certification. Your data stays in EU/UK throughout the workflow.

Keep Your Mailjet Account in Good Standing.

100 free verifications. $3/1K after that. Both EU companies - full GDPR alignment.

Start Free How Bulk Works

Verify lists from your ESP or platform

Works with every major email platform - export, verify, reimport

GoHighLevel verification

Clean agency + client lists inside GHL before sending

Mailchimp verification

Clean lists before campaigns - avoid 2% bounce limit

Klaviyo verification

Remove invalids that inflate contact count + cost

ActiveCampaign verification

Stop bounces from breaking your automations

HubSpot verification

Cut contact tier + protect Marketing Hub score

Salesforce verification

Clean Salesforce CRM contacts before campaigns

Explore other topics

ZeroBounce vs BounceZero ZeroBounce review 2026 Bulk email validation Cold email verification Free email verifier Free bulk email verifier UK email verification US email verification Is Gmail catch-all? Is Outlook catch-all? Inbox Infrastructure Report 2026 Deliverability Benchmarks 2026 Migrate from ZeroBounce Migrate from NeverBounce Verification for recruiters Verification for fintech Cold Email Hub BounceZero + Instantly.ai Verify Apollo exports Verify ZoomInfo exports BounceZero Review 2026 Is BounceZero legit?

Follow BounceZero

Mailjet's Bounce Threshold Will Pause Your Account.