How To Send Emails Using Your NodeJS Discord Bot

Note:

You need to install the nodemailer package (npm install nodemailer) and have an email account with SMTP credentials.

Example (Gmail) Credentials:

– SMTP Host: smtp.gmail.com
– Port: 587
– Email: [email protected]
– App Password: required if Gmail has 2FA enabled

You should place these values directly in your code.

1. Log In to Your Panel

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2. Select the ‘Files’ Tab

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3. Create Your Main Bot’s File

Create a new file called index.js then paste the following code.

What this code does:

• Creates a Discord bot that uses ! as the command prefix.
• It loads login details (SMTP settings and passwords) from a hidden environment file.
• It sets up the nodemailer tool to handle connecting to your email server (like Gmail) for sending mail.
• Adds a command:
  • !mail [email protected] Your message here
• When a user types the command, the bot will:
  • Separate the message: It grabs the recipient’s email and the message body.
  • Connect Securely: It connects and logs in to the email server, automatically using encryption (TLS/SSL) to protect the login.
  • Send the Email using the transporter.sendMail() function.
  • Reply in Discord with one of two simple messages:
    • “Email sent to **<recipient>**!” if it works.
    • “Email failed. Error: **<error message>**” if there is a problem.
  • Prevents Crashes: It uses try...catch so errors are reported but the bot stays online.
• Uses discord.js for chat and nodemailer for email sending.

const { Client, IntentsBitField } = require('discord.js');
const nodemailer = require('nodemailer');

const SMTP_HOST = 'smtp.gmail.com';
const SMTP_PORT = 587;
const SMTP_USER = 'USER';
const SMTP_PASS = 'PASSWORD';

const transporter = nodemailer.createTransport({
    host: SMTP_HOST,
    port: SMTP_PORT,
    secure: SMTP_PORT === 465,
    auth: {
        user: SMTP_USER,
        pass: SMTP_PASS,
    },
});

const client = new Client({ 
    intents: [
        IntentsBitField.Flags.Guilds,
        IntentsBitField.Flags.GuildMessages,
        IntentsBitField.Flags.MessageContent,
    ] 
});

client.on('ready', () => {
    console.log(`Bot is online! Logged in as ${client.user.tag}`);
});

const PREFIX = '!';

client.on('messageCreate', async message => {
    if (message.author.bot || !message.content.startsWith(PREFIX)) return;

    const parts = message.content.slice(PREFIX.length).trim().split(/\s+/);
    const command = parts.shift().toLowerCase();

    if (command === 'mail') {
        if (parts.length < 2) {
            return message.channel.send('Please use the format: `!mail [email protected] Your message here`');
        }

        const recipient = parts[0];
        const text = parts.slice(1).join(' '); 

        try {
            await transporter.sendMail({
                from: SMTP_USER,
                to: recipient,
                subject: "Message from Discord Bot",
                text: text,
            });

            await message.channel.send(`Email sent to **${recipient}**!`);
        } catch (error) {
            await message.channel.send(`Email failed. Error: \`${error.message}\``);
        }
    }
});

client.login("YOUR_BOT_TOKEN");

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