Email Verification for Agencies - Bulk, Agency Scale | BounceZero
For Marketing Agencies - Multi-Client, High Volume

Email Verification Built for Agency Scale

Handle multiple client lists, deliver clean data with confidence, and protect every client’s sender reputation. BounceZero scales from a 500-contact campaign list to millions of leads with volume pricing and full API access.

Start Free - 100 Credits Volume Pricing
From $2.20/1,000 at volume REST API for automation Credits never expire

Backed by & listed on

G2
G2
Listed
aws
AWS
Activate
Google
for Startups
NVIDIA Inception Program
NVIDIA
Inception
MongoDB
Atlas
Gartner
Gartner
Peer Insights
Product Hunt
Featured
RapidAPI
Marketplace
Datadog
Startup Program
UK Ltd Co.
No. 17153835
G2
G2
Listed
aws
AWS
Activate
Google
for Startups
NVIDIA Inception Program
NVIDIA
Inception
MongoDB
Atlas
Gartner
Gartner
Peer Insights
Product Hunt
Featured
RapidAPI
Marketplace
Datadog
Startup Program
UK Ltd Co.
No. 17153835

Why Agencies Choose BounceZero

Volume Pricing

The more you verify, the less you pay. BounceZero scales from $3/1K on entry plans to $2.20/1K for 1M+ credits. Credits never expire - buy in bulk for your client base and use when needed.

API-First Architecture

Automate your agency workflow with our REST API. Submit client lists programmatically, poll for results, and integrate verification into your existing reporting pipeline. JSON responses with full signal data.

Detailed Signal Data

Every verification returns a confidence score, risk classification, and plain-English explanation. Your clients get not just pass/fail, but a full breakdown of every email's deliverability profile.

No Subscription Lock-In

Pay per verification, not per month. Your agency doesn't need to commit to a monthly volume minimum. Purchase credits when you have client work, use them on any client list.

99.8% Accuracy

BounceZero's 5-stage pipeline: syntax, DNS/MX, SMTP, provider intelligence (200+ providers), Bayesian + ML scoring. The same accuracy that enterprise teams rely on, available to agencies of any size.

GDPR-Compliant Processing

BounceZero is a UK company (ICO registration ZC132839) with full GDPR compliance, DPA available, and EU/UK data processing. Present this to any client who asks about data handling.

Agency Volume Pricing

Credits never expire - buy once, use across all client work.

Starter
$6
2,000 credits
$0.003 per email
Credits never expire
Get Started
Growth
$15
5,000 credits
$0.003 per email
Credits never expire
Get Started
Popular
Professional
$30
10,000 credits
$0.003 per email
Credits never expire
Get Started
Enterprise
$1,200
500,000 credits
$0.0024 per email
Credits never expire
Get Started
Ultimate
$2,200
1,000,000 credits
$0.0022 per email
Credits never expire
Get Started

Need custom pricing above 1M/month? Contact us

Frequently Asked Questions

What volume discounts does BounceZero offer agencies?

BounceZero scales from $3/1,000 on standard plans to $2.20/1,000 on the Ultimate plan. Credits never expire, so agencies can buy in bulk. Contact us for custom pricing above 1M verifications/month.

Can agencies white-label BounceZero reports?

BounceZero provides clean CSV exports for client presentation. The API allows integration into your own platform. Full white-label dashboard is on our roadmap.

How does BounceZero handle multiple client lists?

Create separate bulk jobs per client list, download individual results. The API allows programmatic job creation. Each job has a unique ID for tracking.

Does BounceZero have an API for agency automation?

Yes - full REST API with JSON responses. Submit lists, poll for results, and integrate into your workflow. Documentation at bouncezero.io/docs.

Is BounceZero GDPR compliant?

Yes. UK company, ICO ZC132839, full GDPR compliance with DPA available. EU/UK data processing. Present to any client asking about data handling.

Verify at Agency Scale. Starting at $6.

Volume pricing, API access, credits that never expire. Start with 100 free verifications.

Create Free Account View API Docs

Email verification for agencies and resellers

Volume pricing, team accounts, white-label API, GDPR-ready

Volume pricing at $3/1K for all client lists

BounceZero charges $3 per 1,000 verifications across all plan tiers - no per-seat licence, no per-client surcharges. Buy credits in bulk and distribute across client campaigns. Credits never expire, so unused credits from one client's campaign roll to the next.

White-label API for in-app verification

Agencies building client dashboards or marketing platforms can integrate BounceZero's API directly. The REST API returns JSON with 65+ signal fields per address - all the data you need to build a branded deliverability report for clients.

Sub-account management for client isolation

Run verification jobs per client with separate result downloads. No data mixing between client lists. Each bulk job produces a separate results file with classification, confidence score, and plain-English explanation for every address - ready to share with clients as-is.

GDPR-ready with DPA available

BounceZero is CSA STAR Level 1 certified, hosted on OVH UK infrastructure (EU data residency), with a signed Data Processing Agreement available. For agency clients with GDPR obligations, BounceZero signs as a data processor - reducing the compliance burden for your client contracts.

65+ signal fields for deliverability reporting

Every verification result includes classification, confidence score, MX status, SMTP response, catch-all flag, disposable flag, role flag, spam-trap flag, and plain-English explanation. Turn BounceZero output into a client deliverability report with no additional research.

Reseller programme with recurring commission

Agencies that refer clients to BounceZero earn 30% recurring commission on every payment - lifetime of the customer relationship. Tracked via a vanity referral link with real-time dashboard. More at bouncezero.io/partners/affiliates.

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

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