Developer creates email app with inboxes restricted to single sender

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A developer has launched an email application featuring inboxes that restrict incoming messages to a single sender. The app offers three specialized inbox types: one-sender inboxes that lock to the first email domain received, temporary inboxes that expire after a set duration, and prefix-based inboxes that auto-create on first use. Users can bring their own domain and integrate AI via an MCP server. The developer is currently soliciting public testing and feedback on the platform.

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