Legacy Compatible

    SMTP Relay for
    Every System

    Swap your email provider in minutes without changing a single line of application code. Optimized for servers, apps, and legacy software.

    Transactional emails are limited to 2 MB by default. Need larger attachments? Request a Transactional Email Size Increase for a final email size of up to 40 MB, including Base64-encoded attachments and the message body.

    SMTP Docs
    nodemailer.js
    const nodemailer = require('nodemailer');

const transporter = nodemailer.createTransport({
  host: "smtp.simplysend.email",
  port: 587,
  secure: false, // true for 465, false for 587
  auth: {
    user: "your_account_id",
    pass: "your_smtp_password",
  },
});

const sendSmtpEmail = async () => {
  const info = await transporter.sendMail({
    from: '"Apps" <[email protected]>',
    to: "[email protected]",
    subject: "Order Confirmation",
    text: "Your order has been processed.",
    html: "<b>Your order has been processed.</b>",
  });

  console.log("Message sent: %s", info.messageId);
};

    Global Edge Nodes

    Lowest latency SMTP connection from anywhere in the world.

    TLS 1.2 Security and up

    Encrypted connections on ports 587 and 465 for secure relay.

    High Delivery Rates

    Proactive IP reputation management and spam filter bypass.