Getting Started with BNB Smart Chain and .bnb Names

Mailchain users can use their BNB Chain wallet addresses and .bnb names to send and receive messages. It’s simple to get started…

Introduction

Binance Smart Chain is a sovereign smart contract blockchain delivering Ethereum Virtual Machine (EVM) compatible programmability. Designed to run in parallel with Binance Chain, Binance Smart Chain retains the former’s fast execution times and low transaction fees while adding Smart Contracts functionality to support compatible dApps. - Source: BNB Chain

.bnb domain names are provided by SPACE ID, a company building a universal name service network with a one-stop identity platform to discover, register, trade, manage web3 domains. It also provides a multi-chain name service for everyone to easily build and create a web3 identity. — Source: SPACE ID Documentation

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How To Add Your BNB Smart Chain Address or .bnb Domain Name To Mailchain

Prerequisites:

• You have a Mailchain account (see here)
• (Optional) You have a .bnb name, registered through SPACE ID, registered to your address (see here)

Add Your SPACE ID Domain to Mailchain

Step 1: Connect your wallet

Follow these steps to connect and register an existing blockchain wallet address:

1. Once you have signed into Mailchain, head to your Inbox (https://app.mailchain.com/inbox)

2. Click 'Register your wallet'

   

3. Select a wallet provider which supports the wallet address you are registering (e.g. Metamask for Ethereum and all other EVM addresses)

   

4. Click 'Connect'

   

5. Select the address you would like to register, then click 'Next'

   

6. Click 'Connect' to confirm Mailchain should be able to read your address

   

Your wallet is now connected.

Step 2: Verify your address

1. You can now register your wallet address with Mailchain. To do this click 'Verify Address'.

   advanced option

   By default, Mailchain is able to receive messages for your existing blockchain wallet address before you sign up. If you do not wish to retrieve these messages, un-check the option to 'Retrieve messages sent to my address prior to registering'.

   

2. A 'Signature Request' will appear in your wallet. It contains the following text:

   Message:
   Welcome to Mailchain!
   

   Please sign to start using this address with Mailchain. This will not trigger a blockchain transaction or cost any gas fees.
   

   What's happening?
   A messaging key will be registered with this address and used only for messaging. It will replace any existing registered messaging keys.
   

   Technical Details:
   Address: your_address
   Messaging key: a_generated_messaging_key
   Nonce: a_number

   Review the request

3. Click 'Sign'

   

Your wallet is now verified.

Step 3: Adding your .bnb name

1. The next step checks for any supported Web3 domain names that resolve to your wallet address, including .bnb names.

   

   The example below found allofweb3.bnb

   

   Manual search for a web3 domain

   If your name is not automatically found, you can manually search for it using the search box.

   
   note

   If your name still cannot be resolved, please see If it still cannot be found, please see SPACE ID FAQs for troubleshooting tips.

2. Click 'Apply' to save your changes.

   

Step 4: Disconnect your wallet

1. Click 'Disconnect' to disconnect your wallet from Mailchain.

   

   You have successfully registered your wallet address with a set of messaging keys that belong to your Mailchain account. You no longer need to have wallet connected to send and receive messages.

2. You now have the option to 'Go To Inbox' or to 'Register Another Address'.

   

   You will see your new sub-inbox in the left sidebar.

   

How To Send A Message From Your BNB Smart Chain Address or .bnb Name

With Mailchain you can send Mailchain messages from your .bnb name or BSC address to other Mailchain users.

Prerequisites

• You have a Mailchain account (see here)
• (optional) You have a .bnb name registered to your address (see here)
• (optional) You have added your .bnb domain to Mailchain (see above)

Compose And Send A Message From Your .bnb Name or BNB Smart Chain Address

1. Log into your Mailchain account.

2. Click 'Compose' in the sidebar.

3. In the New Message window, click the “From” dropdown menu and select your BNB Chain address or .bnb name.

4. Fill out the rest of the message, then click Send.

5. Your message should be successfully sent.

Done! Your recipient will receive your message from your address or .bnb name.