Debounce

Debounce checks every address on your list against SMTP servers and known threat patterns.

Updated April 2026

DeliverabilityData SourcesSales Tools

Overview: What is Debounce?

It removes disposable inboxes, spam traps, and syntax errors before you send. The result is a cleaner list and fewer bounces.

Debounce is a bulk email verification tool designed to keep contact databases accurate and safe for outreach. It connects to mail servers to confirm whether an inbox exists and can accept messages. The platform flags catch-all domains, detects spam traps, and filters out temporary or disposable addresses. Syntax validation catches formatting mistakes before they cause delivery failures. Teams can upload CSV or TXT files for batch processing or connect via API for real-time checks at signup forms. Credits never expire and every tier includes the full feature set with no recurring contracts.

Fit: Ideal customer profile.

Marketing and sales teams at startups and mid-market companies who rely on cold email and need to protect their sender reputation.

Seed
SMB
Mid-market

Capabilities

Key features.

SMTP-level inbox verification

Disposable email address detection

Catch-all domain identification

Invalid syntax filtering

Spam trap detection and removal

Real-time API for form integrations

Free deduplication on every upload

Credits that never expire

GDPR compliant data handling

Pay-as-you-go pricing with no contracts

Usage

How to use Debounce.

Upload a CSV or TXT file containing the addresses you plan to contact. The platform runs each entry through syntax checks, SMTP validation, and trap detection, then returns a cleaned list ready for export. Teams can also integrate the API to verify addresses at the point of collection on web forms.

Cost

Pricing.

$10/ Per credit

Pay-as-you-go starting at $10 for 5,000 verifications, with 100 free credits on signup.

5,000 Verifications

$10.00

5,000 verifications
$$0.002 each
credits never expire
all features included
no contracts
free deduplication

10,000 Verifications

$15.00

10,000 verifications
$$0.0015 each
credits never expire
all features included
no contracts
free deduplication

25,000 Verifications

$30.00

25,000 verifications
$$0.0012 each
credits never expire
all features included
no contracts
free deduplication

50,000 Verifications

$50.00

50,000 verifications
$$0.001 each
credits never expire
all features included
no contracts
free deduplication

100k Verifications

$90.00

100,000 verifications
$$0.0009 each
credits never expire
all features included
no contracts
free deduplication

200k Verifications

$140.00

200,000 verifications
$$0.0007 each
credits never expire
all features included
no contracts
free deduplication

500k Verifications

$300.00

500,000 verifications
$$0.0006 each
credits never expire
all features included
no contracts
free deduplication

1M Verifications

$500.00

1,000,000 verifications
$$0.0005 each
credits never expire
all features included
no contracts
free deduplication

2M Verifications

$800.00

2,000,000 verifications
$$0.0004 each
credits never expire
all features included
no contracts
free deduplication

5M Verifications

$1500.00

5,000,000 verifications
$$0.0003 each
credits never expire
all features included
no contracts
free deduplication

At a glance

Quick facts.

Stack position: Deliverability
Category: Data Sources, Sales Tools
Best for: Seed, SMB, Mid-market
Pricing: From $10/Per credit

Subcategories

Email Finder
Email Verification

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Questions

Frequently asked.

How do I verify a list with Debounce?

Upload your contacts as a CSV or TXT file and the platform checks each address. It returns a cleaned file with invalid, disposable, and trap addresses removed.

What does Debounce cost?

Pricing is pay-as-you-go, starting at $10 for 5,000 verifications. Credits never expire and volume discounts reach $0.0003 per check at the highest tier.

Why should I pick Debounce over alternatives?

The platform delivers above 97.5 percent accuracy and includes deduplication at no extra charge. Every tier unlocks all features with no contracts and full GDPR compliance.

What technology does Debounce use to validate addresses?

It combines SMTP checks, spam-trap databases, catch-all detection, and anti-greylisting methods. These layers work together to confirm whether an inbox is real and safe to mail.

Is there a free plan or trial?

New accounts receive 100 free verification credits. No credit card is required to start testing the service.

Does Debounce have an affiliate or partner program?

Yes, the company runs an affiliate program. Partners earn commissions by referring new users to the verification service.

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