An easy-to-use SaaS application that allows you to quickly verify mailing lists

Ultrafast, robust and easy-to-integrate email verification API

Easily connect your Bouncer account with marketing platform you love, and verify your email list effortlessly

Identify invalid, malicious, or fraudulent email addresses at the moment of entry.

Forget about manual email verification. Just connect to your CRM, configure, and let Bouncer do the rest.

Identify if your email list contains any toxic email addresses

Improve your email campaigns by enriching customer data with publicly available company information

Test your inbox placement, verify your authentication, and monitor blocklists

Check how active your contacts are in their inboxes overall!

Accuracy you can trust. Results you can prove.

Bouncer: Email Verification & Deliverability Platform

UseBouncer is a cloud-based email verification and validation service that helps businesses secure better email deliverability by cleaning contact lists, reducing bounce rates, and protecting sender reputation. It offers both standalone apps and powerful developer APIs for real-time and bulk email verification.

Company information

  • Name: UseBouncer (product often referred to as Bouncer)
  • Founded: 2017
  • Headquarters: Europe (EU infrastructure)
  • Website: https://www.usebouncer.com/
  • Core expertise: Email Verification, Email Validation, API Integration, Data Enrichment, Deliverability Protection
  • Industry: SaaS, Email Technology, Data Quality
  • Target Users: Marketing teams, developers, CRM users, sales operations, e-commerce platforms, agencies, and enterprises.

Primary services & capabilities

1. Email verification & validation

Verify email addresses to reduce hard bounces, improve campaign performance, and protect sender reputation. Algorithms check syntax, domain records, SMTP responsiveness, and real deliverability without sending a message.

2. Email verification app

A standalone interface for uploading and cleaning email lists quickly with batch upload support and exportable results.

3. Real-time email verification API

Integrate verification into your website, signup forms, or CRM so addresses are checked the moment they’re entered. This API supports both synchronous and asynchronous calls and returns rich deliverability data.

4. Bouncer Shield

Protect signup forms from invalid, fraudulent, or malicious email entries in real time, improving data quality at capture.

5. Toxicity & risk insights

Score emails on a toxicity scale to identify low-quality, disposable, or risky addresses that might hurt deliverability.

6. Deliverability Kit

Tools for testing inbox placement, monitoring blocklists, and analysing authentication records (SPF/DKIM/DMARC) to ensure emails reach the inbox.

7. Integrations & data enrichment

Connect with your CRM, marketing automation tools, or spreadsheets to automate list cleaning and enrich contact profiles.

How it works (verification process)

UseBouncer verifies an email through several steps:

  • syntax checking
  • domain and MX record validation
  • SMTP handshake with mail server
  • risk assessment and quality scoring

Results can be delivered as deliverable, undeliverable, risky, or unknown, with reasons explaining each status.

Industries & typical use cases

Bouncer fits teams and workflows where email quality is critical:

  • Marketing & Email Campaigns: Improve open/click rates and ROI.
  • Sales & Lead Ops: Validate leads before outreach.
  • CRM & Automation Platforms: Keep subscriber databases clean and actionable.
  • Product Signup Flows: Ensure form submissions capture real and reachable addresses.
  • E-commerce & SaaS: Reduce churn from invalid contact info.

Pricing & free tier

UseBouncer offers a free starter tier with credits included. Paid plans operate on credits that never expire and can be purchased in flexible bundles — meaning you only pay for what you use.

Competitive advantages

  • High Accuracy: Strong verification logic across syntax, domain, and SMTP checks.
  • Real-Time & Bulk Support: API meets both transactional and mass list needs.
  • Rich Verification Insights: Risk scoring and deliverability reasons add context beyond basic yes/no.
  • GDPR-Compliant & Secure: Hosted in the EU with strong privacy practices.
  • User-Friendly: Intuitive UI and integrations simplify adoption.

Typical results & metrics

UseBouncer claims to have verified billions of emails, prevented large bounce volumes, and maintains a high uptime with minimal unknown verification results — metrics that underscore its reliability for campaigns.