Verify any list — from hundreds to millions. Real-time batched checks or async queue processing, all with 99.9% SMTP-level accuracy.
Turn large lists into clear validity distribution, status counts, and export-ready segments so sales and marketing teams can remove bad addresses before campaigns launch.
Each address in your list runs through the same multi-layer check automatically.
Check individual emails for validity, deliverability, and reputation. No account required.
Identify and block temporary email services before they pollute your list.
Detect emails likely to bounce before sending, protecting your sender reputation.
Every address goes through per-address SMTP verification, then your list is processed in the mode you choose.
Per-Address Verification
Validates format against RFC standards. Catches typos, invalid characters, and structural errors instantly.
Confirms the domain exists and has valid mail server records configured to receive email.
Opens a real connection to the receiving mail server. No test email sent, no spam risk.
Verifies the specific address exists on the server and is deliverable before you send.
Sync or Async
Choose the processing mode that fits your use case.
Batched API Calls
Send individual API requests in parallel batches. Each address returns a result immediately — ideal for real-time pipelines, sign-up flows, or small-to-medium lists where you need per-address results.
Queue-Based
Submit a list and let the queue handle the rest. Large lists are processed in the background at 50,000 addresses per hour. A webhook callback notifies you when the job is complete.
Built for speed, accuracy, and reliability at any volume.
<3s
Per Address
Full SMTP verification
50K/hr
Async Throughput
Queue-based processing
99.9%
Accuracy
SMTP-level precision
99.99%
Uptime
Enterprise reliability
Every email verification tool in one platform.
Verify individual addresses with real-time SMTP checks and instant results.
Remove invalid, risky, and inactive addresses to improve deliverability before every campaign.
Verify addresses in real time during signup, enrichment, or automation workflows.
Each address in your list goes through the same per-address SMTP verification — syntax check, domain lookup, MX record confirmation, and direct mailbox verification. For bulk lists, you can process addresses synchronously via batched API calls or submit asynchronously to the queue for background processing with webhook callbacks.
Each file can contain up to 100,000 emails (max 20MB). Async queue processing handles lists of any size at up to 50,000 addresses per hour. For lists over 1 million, contact us for dedicated infrastructure.
Pay-as-you-go starts at $0.005 per email. Volume pricing goes as low as $0.001 per email for 1M+ credits. No monthly fees — you only pay for what you use. The free tier includes 100 verifications daily.
Yes. Duplicate addresses are automatically detected and removed before verification begins. This saves credits and ensures accurate results. Deduplication catches exact matches, case variations, and plus-address aliases across your entire list.
API results are returned inline as JSON for each address. Async jobs deliver results via webhook when complete, or you can poll the job status endpoint. CSV export is also available from the dashboard with status, quality score, and reason code for every address.
Yes. The free tier gives you 100 verifications daily with no credit card required. All features are included — syntax, domain, SMTP, disposable detection, and bounce checking — so you can test with real data before upgrading.
Real-time batched checks or async queue processing for any list size. 99.9% SMTP-level accuracy, no monthly fees.
100 free verifications daily · 99.9% SMTP-level accuracy · No credit card required
