NeverBounce is a high-accuracy email verification service used by more than 125,000 businesses, including many Fortune 500 marketing teams. It cleans email lists before campaigns, verifies addresses in real time at the point of capture, and integrates directly into the most popular email platforms.
Product Overview
NeverBounce processes lists in minutes at scale, returning each address with a precise status: valid, invalid, disposable, catchall, or unknown. Its Sync feature connects directly to email platforms (Mailchimp, HubSpot, ActiveCampaign) to clean lists automatically on a schedule — no manual CSV exports required. The real-time JavaScript widget embeds into any form to reject bad emails before they enter the database.
Key Features
- Bulk List Cleaning: Upload lists of any size and receive granular status codes for every address in minutes.
- Sync (Auto-clean): Connect directly to your email platform and schedule automatic list cleaning without manual exports.
- Real-Time Verification Widget: JavaScript embed that verifies email addresses in web forms as users type — before they hit submit.
- Catch-All Detection: Identifies domains that accept all incoming mail (catch-all), flagging them for additional scrutiny.
- API Access: RESTful API for real-time verification at any system touchpoint, with client libraries for major languages.
Best For
Email marketers and RevOps teams running large outbound campaigns or growing contact databases, who need high-accuracy cleaning with direct integrations into existing email tools.
Pricing
Pay-as-you-go from $8 per 1,000 verifications. Subscription plans available for heavy users. Free trial with limited verifications.
Key Integrations
Mailchimp, HubSpot, ActiveCampaign, Constant Contact, Klaviyo, Salesforce, Zapier
Pros
- Very high accuracy rate
- Direct sync with popular email platforms
- Fast processing even for large lists
- Easy-to-use dashboard
Cons
- No email scoring beyond valid/invalid/unknown
- No email finder — verification only
- Pay-as-you-go cost adds up for frequent large runs
