BounceBuster

Download BounceBuster

Available for macOS and Windows. Free tier: 600 emails/month. No account required.

macOS

macOS 11 Big Sur or later. Apple Silicon & Intel.

Download for macOS (.dmg)
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Windows

Windows 10 or later.

Download for Windows (x64)Download for Windows (ARM64)

Free tier: 600 emails/month, no account required. For unlimited validation, get the Professional plan for $19 one-time.