Send Email.
Deliver as Nostr DM.

Yes, if you need a throwaway or anonymous inbox for:

• 2FA codes, OTP, and registration confirmations
• Machine-generated alerts, receipts, and notifications
• Newsletters and other impersonal mail
• Machine-to-machine communication
• Use cases where Nostr-native delivery matters

No, if you need:

• Reliable delivery of personal or important messages
• Long-term storage, search, or history of correspondence
• Reply chains or two-way conversation
• A replacement for your primary mailbox
• Anything where a lost message would cause real harm

All four domains are supported and functionally identical:

• mail2nostr.com (primary)
• mail-to-nostr.com
• mail-2-nostr.com
• m2n.email

Emails sent to npub1…@mail2nostr.com and npub1…@m2n.email are processed identically. NIP-05 identifiers work on all domains.

NIP-05 is off by default when you register a username. Your email delivery works without it — the gateway resolves your username internally via cryptographic hashing.

To activate NIP-05 (so Nostr clients show a ✅ checkmark for your address):

1. Send a NIP-04 encrypted DM to the gateway pubkey: loading…
2. The DM content must be your full email address, e.g. user@mail2nostr.com
3. The gateway verifies you are the registered owner and enables NIP-05

The domain must be one of the supported domains (mail2nostr.com, mail-to-nostr.com, mail-2-nostr.com, m2n.email). Bare usernames without a domain are rejected.

Once activated, /.well-known/nostr.json?name=user publicly resolves your username to your Nostr pubkey. If you need anonymity, do not activate NIP-05.

There are three stages:

1. Registration (first purchase):

• Username does not exist yet
• Full checkout: 500 sats (includes registration + 30 days)
• You receive an ownership nonce — store it safely
• Username is now bound to your Nostr pubkey

2. Renew (while feature is active):

• Your feature is still active and you want to extend it
• Lightweight renewal via the /renew endpoint: 50 sats / 30 days
• No checkout needed — expiry date is extended directly
• Requires your hash_pubkey + nonce

3. Re-purchase (after expiry):

• Your feature expired, but your username is still registered ("once registered, stays yours")
• Full checkout again: 50 sats / 30 days (renewal price, since username exists)
• Requires your ownership nonce as proof
• Feature is reactivated on the same username

The ownership nonce is the only way to prove you own a username. If you lose it, re-purchase is impossible — there is no recovery mechanism.

If you have a registered username, you can tag emails with +anything before the @ sign. The gateway strips the tag and delivers to your username as usual.

Example: If your username is alice, all of these reach you:

• alice@mail2nostr.com — normal
• alice+newsletter@mail2nostr.com — tagged
• alice+banking@mail2nostr.com — tagged

Use +tags to organize incoming mail, filter by sender, or generate unique addresses for different services — all without purchasing additional features.

Note: Plus-addressing works with usernames only, not with raw pubkey addresses (an npub1… is already 63 characters — the RFC 5321 limit for the local part is 64).

Your messages are published to a pool of 5 Nostr relays:

• wss://relay.damus.io
• wss://relay.primal.net
• wss://relay.nostr.net
• wss://nostr.oxtr.dev
• wss://no.str.cr

For each message, 2 relays are picked at random from this pool. As soon as one accepts the event, delivery is considered successful — the second relay provides redundancy, not a hard requirement. This avoids duplicate delivery while still protecting against a single relay failing.

Important: We cannot guarantee that any specific relay will remain available or continue accepting events. Relay operators may change their policies at any time. If delivery reliability is critical to you, consider using the relays feature to specify your own.

Yes. With the relays feature, the default random 2-relay delivery is replaced entirely. Your messages are sent to each relay in your list (up to 10) — we attempt delivery to all of them, not a random subset. You can add your own relays, or include defaults from our pool. Each relay you add costs the per-relay price. We cannot guarantee that any specific relay will actually accept or store an event — relay operators may change their policies at any time. Free-tier users (without this feature) get random 2-relay delivery from the default pool at no cost.

Your messages are then delivered to all relays in your custom list. Default relays you keep benefit from the same redundancy as the standard pool. Non-default relays receive every message directly via ephemeral connections.

Shadow Pubkey redirects incoming emails to a different Nostr pubkey. The sender thinks they're emailing pubkey_A@mail2nostr.com, but the encrypted DM is delivered to pubkey_B.

This prevents correlation between your public email address and your actual Nostr identity. The original recipient never sees the email.

Without this feature, the author of your Nostr DMs is always the gateway pubkey. With Anonymous Sender, each email gets a different author pubkey:

• Tier 1 (deterministic): Same author for all emails to the same recipient — stable but not the gateway
• Tier 2 (random): A new random author for every single email — maximum unlinkability

Paid features last 30 days. There is no auto-renewal — you must manually renew.

After expiry:

• Feature is deactivated (emails still accepted at free-tier rate)
• Your username stays registered but inactive
• Your pubkey hash is deleted from the database
• You can re-register your username at the renewal price (50 sats) if you have your ownership nonce