How to Build a Scalable Bulk Email System with Node.js, RabbitMQ, and BullMQ

Jun 9, 2025 · 4 min read · Sending emails at scale isn't just about firing off SMTP requests. Once you're dealing with thousands (or millions) of users, whether for newsletters, notifications, or updates, you need a design that’s reliable, fault-tolerant, and doesn’t buckle un...