Clean customer lists in bulk with simple email verification.
NilBounce
Open app
Email Intelligence Platform

The most accurate email verification platformfor clean customer data.

Stop losing money by sending emails into the void. Clean lists, verify contacts, and protect sender reputation before you hit Send.

99.9% uptime10M+ emails cleaned24/7 product-ready support

Cleaned our campaign list quickly and made the risky contacts easy to review.

Priya Menon

CRM operations

The pricing is simple enough to explain to clients before every list cleanup.

Arjun Nair

Email marketing consultant

Bulk results are clear, and the credit ledger makes usage easy to track.

Meera Shah

Agency founder

A practical tool for checking imported leads before they enter outreach.

Rahul Iyer

Sales systems lead

Improve your domain reputation

Optimize sender reputation by maintaining clean lists, blocking risky contacts, and giving developers a reliable API foundation.

Bulk email verification

Validate emails in bulk

Upload customer, lead, or CRM lists and clean them through queued processing, progress tracking, and downloadable results.

  • CSV upload and validation
  • Queued background jobs
  • Credit estimation before processing
Get started free

Bulk list health

58.5% valid
Valid5850
Invalid1830
Risky920
Unknown1400
Email verification API

Built by developers for developers

Use versioned endpoints, API keys, consistent responses, and clear error codes to add verification directly into your product.

  • Stable /api/v1 namespace
  • Hashed API keys
  • Consistent success and error shapes
Get started free

POST /api/v1/verify

{

"email": "[email protected]",

"status": "valid",

"creditsUsed": 1

}

Credit accounting

Pay only for useful verification

Every verification source writes through the same credit ledger, so billing, refunds, grants, and usage stay auditable.

  • PayPal credit purchases
  • Ledger-backed balances
  • History across web, bulk, and API
Get started free

PayPal checkout

12,400

available credits

Credit grant+10,000
API usage-32
Risk controls

Protect reputation before you send

Turn verification signals into clear statuses so teams can separate valid, invalid, risky, and unknown addresses.

  • Flexible verification engine
  • Clear result categories
  • PII-conscious logging
Get started free
Syntax
Clean
Domain
Live MX
Mailbox
Reachable
Risk
Low

Our Guarantees

We are committed to building the fastest and most accurate email verification platform.

99%

Server uptime guarantee

10M+

Emails cleaned milestone

99.99%

Platform uptime target

24/7

Customer support goal

Join teams that need cleaner email data

Start with free verification, then scale into bulk cleaning, API usage, credits, and PayPal billing as the product grows.

Get started free