Boosting Email Delivery Performance with Nodemailer and AWS SES in Node.js

Adarrsh Paul
1 min readMay 13, 2023

Introduction: In today’s digital landscape, effective email communication is crucial for businesses and individuals alike. Whether it’s sending notifications, newsletters, or transactional emails, ensuring reliable and optimized email delivery is paramount.

import { createTransport, Transporter } from 'nodemailer';
import { SES } from 'aws-sdk';

const SENDING_RATE = 5;
const MAX_CONNECTIONS = 1;

const configureAWS = (): void => {
// Set your AWS credentials
const credentials = {
accessKeyId: process.env.AWS_ACCESS_KEY_ID,
secretAccessKey: process.env.AWS_SECRET_ACCESS_KEY,
};
// Set your AWS region
const region = process.env.AWS_REGION;
// Configure AWS SDK
SES.config.update({ credentials, region });
};

const createSESTransporter = (): Transporter => {
// Configure the SES transporter
const transporterOptions = {
SES: new SES(),
sendingRate: SENDING_RATE,
maxConnections: MAX_CONNECTIONS,
};
return createTransport(transporterOptions);
};

configureAWS();
const sesTransporter: Transporter = createSESTransporter();

export { sesTransporter };

In this article, we will explore how to leverage the power of Nodemailer and Amazon SES (Simple Email Service) in a Node.js environment to enhance email delivery performance. We’ll discuss best practices and provide a step-by-step guide to configuring and using Nodemailer with AWS SES.

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