Bulk email verification is the most efficient way to clean large lists before campaigns.
When to Run Bulk Verification
- Cleaning legacy lists
- Pre-campaign cleaning for seasonal sends
- Monthly maintenance
- Database migrations
The Workflow
Step 1: Prepare Your List
Format as CSV, TXT, or XLSX. Max 500 MB. Remove duplicates, strip whitespace.
Step 2: Upload via Dashboard
- Log in to EmailZeno dashboard
- Navigate to Verifications → New Batch
- Upload your file
- Select priority
Step 3: Processing
| Stage | Progress |
|---|---|
| Parsing | 2% |
| Syntax | 5% |
| Domain/MX | 15% |
| Disposable | 20% |
| SMTP Handshake | 30-95% |
| Report | 100% |
Step 4: Review Results
| Category | Action |
|---|---|
| Deliverable | Send with confidence |
| Undeliverable | Remove |
| Risky | Send with caution |
| Unknown | Re-verify in 72h |
Step 5: Export
Download CSV, JSON, or XLSX.
API Automation
curl -X POST https://app.emailzeno.com/api/verify/bulk
-H "Authorization: Bearer YOUR_KEY"
-F "[email protected]"
-F "callback_url=https://your-app.com/webhooks"
Conclusion
Bulk verification with EmailZeno is fast, accurate, and straightforward.
