Listmonk vs Mailgun: Features, Pricing and User Reviews 2026

Listmonk is an email marketing platform that you install and run on your own server. Unlike cloud services such as Mailchimp, you download and host it yourself, which means you own all your data and pay no monthly fees.

It lets you manage subscriber lists, create email campaigns, and track performance through a clean web dashboard. The software is built using Go programming language and uses PostgreSQL as its database, making it fast and reliable.

You can send bulk newsletters, automated transactional emails, and even SMS messages through external services. The platform includes a drag-and-drop email builder, multiple template options, and detailed analytics. Because it is open source under the AGPLv3 license, developers can modify and customize it to fit specific needs.

Mailgun is a cloud-based email delivery service designed specifically for developers and businesses who need to send emails programmatically through their applications. Think of it as the engine that powers email functionality in websites and apps - from simple contact forms to complex automated email workflows.

The platform offers both RESTful APIs and SMTP relay services, giving developers flexibility in how they integrate email capabilities. Unlike traditional email marketing platforms with drag-and-drop editors, Mailgun focuses on programmatic email sending with features like real-time tracking, webhook notifications, and detailed delivery analytics.

What sets Mailgun apart is its focus on deliverability and developer experience. The service handles technical complexities like IP reputation management, email authentication, and spam compliance, while providing simple APIs that work with virtually any programming language including Python, PHP, Java, Ruby, and Node.js.