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Send Email.
Deliver as Nostr DM.

Mail to Nostr bridges e-mail and Nostr. Send an email to a Nostr public key — we deliver it as an encrypted Direct Message. Free, private, instant. Plain text and HTML supported.

How it works Privacy Features Use Cases Free Tier Try It

How It Works

From email to encrypted Nostr DM in seconds.

Email comes in

You send an email to npub1…@mail-to-nostr.com — from Gmail, Outlook, or any client. Plain text and HTML both work.

Gateway checks features

Rate limits, feature validation — all processed instantly.

Rate Limit Stronger Hash

HTML converted to Markdown

HTML emails become clean text. Attachments and images are stripped.

Encrypted with NIP-04

Leaving our gateway end-to-end encrypted by default. Your emails arrive as private Nostr direct messages.

Published to relays

Your encrypted message travels the decentralized Nostr network.

Recipient gets a DM

Decrypted only by the recipient's private key. No middleman.

Privacy by Design

Built so your data stays yours — even from us.

Want the details? Read our privacy documentation.

Hashed, Not Stored
Your Nostr public key is never saved. Only an irreversible memory-hard scrypt hash. Impossible to reverse back to your identity.
Encrypted at Rest
Features are NIP-44 encrypted with your Nostr key. They stay unreadable until an email arrives with your public key and gets processed in real time.
No Link Without Email
Your pubkey hash and encrypted features are only connected when an email arrives with your public key. Until then, there's nothing to correlate — and nothing to decrypt.

Features

What you can add — and what each one does.

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Use Cases

Or pick a bundle that fits your scenario.

Verified Identity
Be a recognizable, reachable identity — no pubkey knowledge required. Share your address anywhere. Custom relays ensure reliable delivery, removed rate limits handle the traffic of a known entity.
Email Username 1 Relay Removed Limits
Burner Email Address
A disposable, untraceable email address. Shadow redirect hides your real pubkey, burner auto-deletes after N emails, anonymous sender rotates the signing key.
Shadow Pubkey Burner Pubkey Anonymous Sender T1
Paranoid
Maximum privacy. Zero correlation between email and Nostr identity. Shadow redirect, burner auto-delete, random sender keys — the full package.
Anonymous Sender T2 Shadow Pubkey Burner Pubkey
Connect Your Agent
Give your AI agent or bot an email address. Anyone can write to it without knowing Nostr. Your agent receives everything as encrypted DMs.
Removed Limits 1 Relay

Free Tier

No signup, no payment — just send an email.


Optional Upgrades

Try It

Pay once per feature with Lightning — 30 days active, no subscription.

Building an integration? Read the API docs.

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Privacy by design. We store only cryptographic hashes of your public key — never the key itself. We use memory-hard scrypt hashing (N=16384). Feature configurations are NIP-44 encrypted and only decrypted during processing of an incoming e-mail. No plaintext personal data is persisted.

No analytics, no cookies, no tracking. This page loads no external resources — all libraries (NIP-44 crypto, scrypt-js) are self-hosted. Nothing leaves your browser until you choose to purchase.