Show HN: I wrote an email app that accepts only one sender per inbox
Clova.email offers one-sender and temporary inboxes so a leaked address can be deleted without exposing a real mailbox.
Clova.email is a Show HN launch of an alias email service whose one-sender inboxes are claimed by the first correspondent, so later senders are rejected if an address appears on a resold or breached list. It also offers expiring temporary inboxes and prefix-based addresses that still lock to their first sender. Free, Pro at $30 per year, and Business at $50 per year differ by storage, permanent addresses, prefixes, and forwarding limits. Users can connect Claude, Cursor, or another MCP-capable assistant with limited permissions, and Google sign-in shares only email, name, and profile photo.
- One-sender inboxes lock to the first writer and reject others.
- Temporary inboxes expire and can wipe stored mail.
- Plans range from free to $50 per year, with daily message caps.
- An MCP integration can create addresses and read permitted messages.
- Sign-in supports Google, passkeys, or username and password.
- Products
- Clova.emailCursor
- Organizations
- Clova.emailGoogle
- AI models
- Claude
From the original article
2 min read at clova.email
Inbox types Pricing MCP Data Explainer Zero Spam. Quiet by Design. Infinite inboxes, so nobody ever gets your real address.
By edpin2000 · clova.email
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