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Builder Creates Private Mail App on Grok Bot's Inbox Without Using Any Public API

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A developer gave the Grok Bot assistant its own email address and built a single-user mail app called Grok Mail on top of it. The app, built with Next.js on Vercel and storing data in Neon Postgres behind a Clerk login, never connects to the mail provider directly because no public inbox API exists. Instead, an hourly Grok Bot routine syncs incoming mail into the database, and every outgoing message becomes a draft card that the user must approve before sending. The author highlights risks such as untrusted inbound email and prompt injection, and notes that Origin repositories require a higher Vercel plan than the free Hobby tier.

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