HeroBounce
Stop losing 30–40% of your leads to “unknown” emails
FreeWeb
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About
HeroBounce is an email verification platform focused on improving deliverability and reducing bounce rates for outbound and marketing campaigns. It addresses a common limitation in traditional validators, which often classify a large portion of business emails as "unknown" due to catch-all domains or greylisting. Instead of stopping at basic validation, HeroBounce uses a multi-layer approach that includes syntax checks, DNS and MX validation, SMTP verification, and pattern analysis to produce more accurate results. The platform provides confidence scores rather than simple status labels, helping users make informed decisions about which emails to use. It supports bulk list uploads, API integrations, and automated workflows, making it suitable for teams managing large-scale outreach or user data. By improving list quality, it helps protect sender reputation, reduce wasted spend, and increase the likelihood of emails reaching inboxes.
Problem & solution
Problem
Email validators return unknown results, losing valid B2B leads and hurting deliverability.
Solution
Resolves catch-all and greylisted emails using AI and multi-layer validation.
Who it's for
Sales teams, marketers, SaaS companies handling email outreach
Main features
- Catch-all resolution
- Greylist auto-retry
- Bulk email validation
- API integration
- Email finder
Use cases
- Clean outbound prospect lists
- Validate signup emails in apps
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