Email campaigns are a key tool for businesses aiming to connect with their audience directly and effectively. Thanks to Docker’s flexibility and scalability, containerized applications can be used to manage email sending efficiently, securely, and in a customizable way. In this article, I will explore some of the best Docker apps available for creating and managing email campaigns, highlighting their main features and benefits for businesses of all sizes. Let’s get started! Below is a list of free Docker apps for email campaigns that you can install on your Synology NAS.
Listmonk is a self-hosted, high performance mailing list and newsletter manager. It comes as a standalone binary and the only dependency is a Postgres database. You can easily manage millions of subscribers across many single and double opt-in lists. Note: Install Listmonk on Your Synology NAS.
LetterSpace is a self-hosted, open-source newsletter platform alternative to ListMonk designed for managing subscribers and sending campaigns. It offers a user-friendly interface for creating and customizing newsletters, with Docker support for easy setup. Currently English-only, it’s a new but robust tool for streamlined email marketing. Note: Install LetterSpace on Your Synology NAS.
Keila is an Open Source alternative to newsletter tools like Listmonk, Mailchimp or Sendinblue. With Keila you can easily send out newsletter campaigns and create sign-up forms. For smaller newsletters, you can use your own email inbox to send out campaigns. For larger newsletter projects, AWS SES, Sendgrid, Mailgun, and Postmark are supported, in addition to SMTP. Note: Install Keila on Your Synology NAS.
Geoposler Is a Dockerized email campaign management application that allows users to create templates, manage contact lists, and send HTML-based emails via SMTP. It includes features to simplify email marketing campaigns and integrates seamlessly with a MySQL database for managing data. Note: Install Geoposler on Your Synology NAS.
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This post was updated on Saturday / May 17th, 2025 at 11:30 PM