Zero

Self-hostable email client that connects to your accounts for full control over your data.

WebAccount requiredfreemiumglobal

A self-hostable web email client that connects to existing accounts and runs on the user's server, giving local control over message data. It is intended for privacy-conscious individuals, professionals, and developers who want AI-assisted email features without routing content through third-party cloud services.

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Full match profile

Behind the summary, Matchbox keeps a richer profile of Zero - the signals our matcher actually reads to decide when to surface it. It stays private; claim the listing to see and control it.

Problem & pain-point mapping
Who we surface it to (audience fit)
What it's a strong alternative to
Trust & credibility signals

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