Open-source marketing automation compared

Open-source marketing automation compared: which tool fits which job

A team that wants to self-host email and marketing automation has three open-source options that overlap less than their names suggest. Mautic is the choice for campaigns and lead scoring, listmonk is the choice for newsletters at volume, and Dittofeed is the choice for event-driven journeys that developers design and version in code. None of the three gates its core software behind a paid edition in the way Odoo's marketing modules depend on Odoo Enterprise, so the cost question is mainly about hosting, operations and the people who run the system.

The three also differ in license, which matters if you plan to modify or redistribute the code. Mautic is released under GPL-3.0, listmonk under AGPL v3 and Dittofeed under MIT. Mautic describes itself as community-owned with no commercial entity behind it, so your support options come from the community, from managed hosting providers or from an implementation partner. Dittofeed's recent GitHub releases are pre-release tags, with v0.24.0-alpha.21 the latest at the time of writing, so confirm with the maintainers which build is suitable for production before you commit to an architecture.

Before choosing, map your workload. If your team runs lead scoring, multi-step campaigns and CRM sync, Mautic's footprint and cron-driven design need to fit your operations staff. If you mainly send high-volume newsletters, listmonk's single PostgreSQL dependency is simpler to run. If your engineers want journeys in git with CI tests, Dittofeed fits better, but you still need an email service provider and a team comfortable with a pre-release codebase. Confirm each platform's current version, support window and requirements on its official site before you set a plan.

Which marketing automation tool fits which scenario

This table matches four common marketing and lifecycle scenarios to Mautic, listmonk and Dittofeed, with the supplied facts behind each fit and the condition that would break it. Read each row by its scenario first, then check the break condition against your own team, data sources and hosting constraints before shortlisting.

Scenario	Best fit and reason	When the fit breaks
Lead nurturing with lead scoring and CRM sync	Mautic. It is built for campaigns, segments and lead scoring, runs on PHP with Symfony, and needs cron jobs for segment updates, campaign updates and triggers, so the operator must plan scheduled tasks and a messenger consumer for queued email.	The team has no PHP or cron operations skills, or needs CRM sync beyond what its chosen Mautic plugins cover. Confirm the HubSpot or Salesforce plugin scope against your CRM version before committing.
Newsletters to very large lists	listmonk. It is a single Go binary with PostgreSQL as its only dependency, manages millions of subscribers with single and double opt-in lists, and sends through multi-threaded queues across multiple SMTP servers with rate limiting.	You need lead scoring, multi-step automation or CRM-driven journeys. listmonk is a one-way newsletter manager, so those workflows need another system alongside it.
Developer-led lifecycle messages triggered by product events	Dittofeed. It builds journeys from Segment, reverse ETL or the Dittofeed API, keeps email templates in git, and offers a testing SDK for checking campaigns in CI. It integrates with providers such as SendGrid and Amazon SES rather than sending email itself.	Your team needs a stable release for production. Dittofeed's recent GitHub releases are pre-release tags, with v0.24.0-alpha.21 published on October 4, 2026, so confirm your support and upgrade plan before depending on it.
One platform with a CRM for a small marketing team	Odoo can cover CRM and email marketing in one stack. Its Community edition includes Email Marketing and CRM modules, but the Marketing Automation module ships only with Odoo Enterprise, so automated journeys require a paid Enterprise subscription.	You need automated journeys on Community edition only, or you expect to run the platform without an Enterprise subscription. Confirm module availability and licensing terms with Odoo before choosing this route.

Mautic, listmonk and Dittofeed in brief, with their licenses

The three self-hosted options on this shortlist differ more in their architecture and team demands than in their licenses. Odoo is included as a note because its Community edition is often considered for marketing, but the automation features sit in the paid tier. Check each license and release window against your own compliance and upgrade rules before you commit.

Mautic under GPL-3.0

Mautic is a PHP application on the Symfony framework, licensed under GPL-3.0, and it is run by a community with no commercial entity behind it. The project offers no paid edition of the software itself, so the cost of running it is your own hosting, staff time and any outside services you buy. Check the version window before you install: Mautic 7.2 receives security support until 30 September 2026, while Mautic 7.3 is planned as the long-term support release with security support through 31 December 2027. Mautic also needs cron jobs and a messenger consumer, which your operations team must keep running.

listmonk under AGPL v3

listmonk is a one-way newsletter and mailing list manager licensed under AGPL v3. It is a Go backend with a Vue frontend, and PostgreSQL is its only dependency, which keeps the stack small. It suits teams sending high volumes of newsletters and transactional mail through their own SMTP servers. It does not cover multi-step lifecycle journeys in the way Mautic does, so confirm whether campaign logic is enough for your needs. Check the AGPL obligations with your legal team if you plan to modify the code and offer it to users over a network.

Dittofeed under MIT, pre-release

Dittofeed is an MIT-licensed, omni-channel engagement platform that builds event-driven journeys across email, push, SMS and WhatsApp. It describes itself as free forever, but that is the project's own wording, so read the license file rather than the marketing copy. Its recent GitHub releases are pre-release tags, so treat it as a fast-moving component to pilot, not a long-term base for production, until you confirm a stable release policy. It sends through providers such as SendGrid or Amazon SES, which means those contracts are an ongoing cost of their own.

Odoo Community with Enterprise automation

Odoo Community Edition is licensed under LGPLv3, and its repository includes Email Marketing, SMS Marketing, Events and CRM modules. The Marketing Automation and Social Marketing modules ship only with Odoo Enterprise, which uses a proprietary license that requires a valid Enterprise subscription. If your shortlist depends on automated journeys, confirm which edition and subscription you need before you compare costs. Odoo is not OSI-approved open source for the Enterprise edition, so label that edition separately in your review and in procurement.

What each tool needs from your team to run it

Mautic is a PHP application on the Symfony framework, so most of the running effort sits with a team that already operates PHP web applications. The Mautic 7.0 requirements call for PHP 8.2, 8.3, 8.4 or 8.5, MySQL 5.7 or higher with InnoDB or MariaDB 10.2 or higher, and Apache, Nginx or IIS. From Mautic 5.0 onward, npm is also required to build front-end assets.

PHP and database: Platform or application engineers own the PHP version, extensions and the MySQL or MariaDB instance, and must keep them inside the supported range for the chosen Mautic release.
Hosting rule: The project states Mautic should not run on shared hosting. Plan for a VPS or dedicated server in your own cloud account or data center.
Cron jobs: Operations staff schedule the segment, campaign and campaign trigger jobs, which the docs say should be staggered so they do not overlap.
Broadcasts and messenger: Someone must run the broadcasts command for segment emails and a messenger consumer whenever emails are queued, and monitor both.
Install path: The web or command-line installer, Composer with the recommended project template since version 4.0, or a GitHub checkout for development. Confirm the path your team will standardize on before you build the image.

Confirm the exact supported PHP range against the release you plan to deploy, since the release support windows differ by version.

What drives the cost of running each tool

The software licence fee is zero for Mautic, listmonk and Dittofeed, so the budget is made up of other lines. Infrastructure is the first: Mautic must run on a VPS or dedicated server rather than shared hosting, according to the project's requirements page, and it needs a web server, PHP, a MySQL or MariaDB database and a cron schedule. listmonk needs a server and PostgreSQL. Dittofeed is typically run in your own VPC or on Docker Compose or Helm. Mail delivery is the second line. Dittofeed does not send email itself and relies on providers such as SendGrid or Amazon SES, while listmonk sends through the SMTP servers you configure. Those providers bill by volume, and that bill recurs every month. Staff time and any implementation partner are the third and fourth lines. Each is paid for by the hour or by a fixed-scope project, and both are largely one-time for setup and recurring for upgrades and monitoring.

Several drivers move these costs up or down. List size and campaign volume raise the mail bill, database load and send time, so ask the vendor or partner how sizing changes at your expected subscriber count. The number of channels matters because each added channel, such as SMS, WhatsApp or push, adds a provider contract and more integration testing. The release window you upgrade on also changes effort: Mautic 7.2 receives security support until 30 September 2026 and Mautic 7.3 is planned as the long-term support release with security support through 31 December 2027, so staying on a short window means more upgrades. Cron and queue load are easy to underestimate. Mautic relies on staggered cron jobs and a messenger consumer when emails are queued, and these need monitoring and occasional tuning.

Ask for a written quote that separates one-time work from recurring work. Ask for the hosting specification, the expected mail provider tier and monthly volume assumptions, the number of upgrades in the year, who owns cron and queue monitoring, and what the first-year total includes compared with later years. Confirm with each vendor the current support dates before you commit. Since a quote follows from a written scope, make sure channels, list sizes and the upgrade policy are fixed in that scope, so the recurring figure is not left open.

How to choose and pilot a marketing automation tool

This sequence turns a shortlist of Mautic, listmonk and Dittofeed into a documented decision backed by a staging pilot, so the choice rests on your channels, your team's skills and measured delivery rather than on feature lists.

Define the use case and volume
Marketing operations and the platform owner write down the job the tool must do: scored lead nurturing with campaign logic, high-volume newsletters to large lists, or event-driven journeys triggered by product or user data. Record expected list sizes, send frequency and whether messages are triggered by behavior. Done when one paragraph names the primary use case and a secondary use case you will not support, and both are signed off by the marketing and IT owners. Confirm the expected volume with the business owner before comparing any tool's performance claims, since vendor figures are project claims measured on their own setups.
Confirm channels and sending provider
Marketing and the messaging or email operations lead list every channel the program needs, such as email, SMS, WhatsApp, push or Slack, and the sending service already under contract or planned. Check which platform sends directly and which relies on an external provider. Mautic and listmonk handle sending through configured mail transports, while Dittofeed integrates with providers such as SendGrid and Amazon SES rather than sending email itself. Done when a channel matrix shows each channel, the sending provider, and the platform that owns delivery. Ask the provider for its sending limits, bounce handling and suppression behavior in writing.
Check hosting and team skills
The infrastructure lead and the platform engineers compare each candidate's stack against what the team already runs and supports. Mautic is PHP on Symfony, needs MySQL with InnoDB or MariaDB, depends on cron jobs and a messenger consumer, and the project advises against shared hosting. listmonk needs PostgreSQL as its only dependency and ships as a binary or Docker image. Dittofeed is a Node-based stack that the team must be able to operate. Done when each candidate has a named owner for patching, backups and on-call, and the team confirms it has or can hire the PHP, PostgreSQL or Node skills required. Ask the vendor or community which versions are supported before committing to one.
Build a staging install of each candidate
The platform engineers install the shortlisted tools in a staging environment that matches the planned production hosting, following the vendor's documented method (for example the Mautic web or Composer installer, the listmonk Docker image or the Dittofeed Docker Compose deployment). Record the exact versions installed and the release support window for each. Done when every candidate runs in staging, its scheduled jobs or workers are active, and the install notes are stored with the infrastructure documentation. Confirm the release you install is still within its support window at the time of the pilot.
Test one campaign flow end to end
The marketing lead and an engineer build the same representative flow on each candidate: a segment or list, one message template, a send to a seed group of internal test addresses, and a bounce or unsubscribe check. For Mautic, include a campaign with triggers and a scheduled segment update. For listmonk, include a double opt-in list and a transactional template. For Dittofeed, include a journey triggered by a user event. Done when each flow runs from input to delivered test messages, and the team records any manual steps it needed. Label the seed group as illustrative test data and confirm that suppression and consent handling match your policy.
Measure delivery and maintenance effort
The platform owner and the email operations lead log delivery results from the seed sends (accepted, delivered, bounced, complaints where the provider reports them) and the hours each candidate required for setup, configuration and a routine update. Compare the upgrade path for the version you installed, including how cron, workers and database migrations are handled. Done when a single scorecard shows delivery results, setup effort and upgrade effort for each candidate. Ask each vendor or community contact how long a typical upgrade takes and what evidence supports that answer.
Decide and document the choice
The CISO or CIO, with the marketing and platform owners, reviews the scorecard against the use case, channels, licensing and support window of each tool. Record the chosen platform, the rejected alternatives and the reasons, including any licensing terms that affect your use. Done when a signed decision record names the owner, the support window, the hosting plan and the next review date. If you need a team to implement, test or harden the chosen platform, request a written, fixed-scope quote based on this record.

Questions buyers ask before choosing or hiring help

What does a self-hosted Mautic or listmonk install cost to run?

The software itself costs nothing to license, since Mautic and listmonk are both free to download and self-host. The recurring costs are the infrastructure, the staff time to patch and monitor it, and any email delivery service you pay for. Mautic needs a VPS or dedicated server rather than shared hosting, a MySQL or MariaDB database, PHP, npm and cron jobs, so its footprint is larger than listmonk, which needs only PostgreSQL as a dependency. One-time costs include the initial build, configuration, migration of lists and any integrations. Ask any partner for a quote that separates setup from monthly run costs, and for the hosting specification they assume.

How long does a first install and pilot take, and what drives it?

The duration depends mostly on scope, not on the software. A single listmonk instance with one sending domain and a migrated list is a much smaller job than a Mautic deployment with campaigns, lead scoring, cron scheduling, and a CRM sync. The main drivers are the number of integrations, the volume and quality of contact data, the sending infrastructure (SMTP or an email service provider), the approval process for templates and the number of environments. No supplied figure sets a duration, so ask any vendor or partner for a timeline tied to a written scope with named deliverables.

What does the work need from our own team?

Expect to need people who own the platform after handover, not only people who install it. For Mautic, that means someone comfortable with PHP, Composer, database administration, cron jobs and the message queue, since campaigns and segments depend on scheduled commands. For listmonk, the operational load is lighter, but you still need PostgreSQL backup and restore skills, SMTP and deliverability knowledge, and an identity owner for OIDC single sign-on. Marketing operations staff must own list hygiene, consent records and templates. Confirm who handles patching, since Mautic's stated cadence includes monthly patch releases.

Can our team run this without a partner?

A capable platform team can run either tool without a partner, provided it has the skills listed above and time for upgrades. Mautic is the heavier case: its release cadence includes monthly patches and major releases every two years, and each upgrade touches PHP, database and plugin compatibility. listmonk is simpler to operate on its own. A partner adds most value where you need the initial build, security hardening, backup testing, documented runbooks or a retainer for upgrades and support. DeployOpen plans, implements, hardens, backs up, upgrades and documents self-hosted platforms inside your own infrastructure, under fixed-scope agreements, and ongoing support is available as a retainer.

How do we choose between Mautic and listmonk when both are shortlisted?

Choose Mautic when you need campaigns, lead scoring and a marketing database with segmentation rules and cron-driven automation. Choose listmonk when the main job is sending newsletters to large lists, with strong subscriber management, SQL-based segmentation, built-in analytics and a transactional mail API. Both are licensed under GPL-3.0 and AGPL v3 respectively, so check whether your distribution or modification model triggers the AGPL's network clause. Mautic's footprint and upgrade work is larger, so weigh that against the feature gap. Pilot both with your real list and your real send volume before committing.

What should we confirm about Dittofeed's pre-release status before production use?

Dittofeed's recent GitHub releases are pre-release tags, with v0.24.0-alpha.21 published on October 4, 2026, so treat it as pre-production software until you confirm otherwise. Ask the project which tag is recommended for production, what its upgrade and data migration path looks like between alpha releases, and whether breaking changes are documented. Check its MIT license terms, its integration with your email service provider such as SendGrid or Amazon SES, and whether its Docker Compose, Render or Helm deployment fits your VPC. Run a staged pilot with test journeys and the project's testing SDK in CI before any customer message is sent.

How DeployOpen scopes and supports a marketing automation install

DeployOpen plans, implements, integrates, hardens, backs up, documents and supports self-hosted open-source platforms inside your own cloud accounts, data centers or air-gapped networks. For marketing automation, that means starting from the channels, data sources and sending volume you actually need, then writing the scope before any work begins.

How we scope

Confirm which platform fits your use case, such as Mautic campaigns, listmonk newsletters or Dittofeed journeys.
Record the hosting target, database, sending providers and cron or worker requirements in the written scope.
Agree deliverables and timelines in writing before work starts, since most engagements are fixed-scope.

How we build

Install and configure the chosen platform in your infrastructure, following its documented installation method.
Connect the sending provider, identity integration, CRM or data source that your team has confirmed in scope.
Test campaigns, segments and sending paths, and run security testing against the deployed install where scoped.

How we hand over

Document the architecture, configuration, scheduled jobs, backups and upgrade steps for your own operators.
Walk your team through day-to-day administration, including user roles, templates and suppression handling.
Deliver the runbooks and evidence in the agreed format so your internal owners can run the install independently.

How we support

Offer ongoing support, upgrades and continuous testing as a retainer, scoped separately from the build.
Plan upgrades around each vendor's published release and support windows, which you should confirm before committing.
Ask for a written quote tied to scope, so recurring costs for support and retainers are clear from the start.

Open-source marketing automation compared