Top 12 Open Source Email Marketing Software

Jainy patel

Senior Writer

Top 12 Open Source Email Marketing Software

Maintaining a strong connection with your audience is critical in the ever-changing landscape of digital marketing, and email marketing remains a stalwart strategy. The realm of open-source email marketing software adds an extra layer of appeal and flexibility to this time-tested approach.

Looking for Email Marketing Software? Check out SoftwareSuggest’s list of the best email marketing software solutions.

According to research, the global count of email users is projected to reach 4.6 billion by the year 2025. Open-source email marketing tools offer a more affordable option to proprietary ones, freeing companies from the licensing fees that bind them and allowing them to innovate and adapt freely.

 In this blog, we will explore the dynamic world of open source email marketing, unveiling the top 12 marketing software options. Let’s dive in!

What Is Open Source Email Marketing? 

Open-source email marketing utilizes email marketing software developed and distributed under an open-source license. In simpler terms, the source code of the software is freely available for viewing, modification, and distribution. This fosters collaboration among developers, providing a transparent and customizable solution for email marketing.

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When selecting open-source email marketing software, prioritize powerful features, community support, and user-friendly interfaces. Examine the software's scalability to ensure that it satisfies your current and future needs. Choose software with an open development schedule. Also, before making a commitment, ensure that usability and compatibility have been thoroughly tested to ensure a smooth and profitable email marketing experience.

Open-source email marketing solutions often offer cost savings for businesses. Since the software is freely accessible, companies can avoid hefty licensing fees associated with proprietary alternatives. This makes it an attractive option for small businesses and organizations with limited budgets, allowing them to leverage powerful email marketing tools without a significant financial investment.

What Are the Advantages of Using Open Source Email Marketing Software?

Email marketing is a steadfast pillar in the realm of digital marketing, serving as an important means for businesses to engage with their target audience. The selection of email marketing software is critical, and the rise of open-source options adds a new dimension to this process. 

Open source email marketing software, distinguished by its transparent and collaborative development approach, provides several benefits to businesses seeking to improve their marketing efforts.

Advantages of Using Open Source Email Marketing Software By SoftwareSuggest

1. Economical Solutions

The primary benefit of selecting open-source email marketing software is its affordability. Unlike proprietary solutions, which frequently entail high licensing fees and continuous subscription costs, open-source alternatives are usually free of these kinds of expenses.

 Due to their affordability, open-source solutions are particularly desirable for small and medium-sized companies with tight budgets, allowing them to spend money wisely and on other aspects of their marketing strategy.

2. Adaptability and Customization

Open-source software, known for its flexibility and customization capabilities, enables users to tailor the system to their specific needs. 

Unlike proprietary solutions that limit users to a single interface with  predefined features, open source email marketing software allows businesses to create personalized emails and campaigns, incorporate unique branding elements, and seamlessly integrate with other marketing tools.

3. Community Support and Collaboration

The collaborative efforts and vibrant community support that define open-source solutions are a major advantage. The developers, marketers, and enthusiasts that make up the open-source community work together to improve and advance the software. 

This cooperative setting guarantees regular updates, quick fixes for security flaws, and the creation of new features while offering businesses a plethora of information and assistance.

4. Transparency and Security

Transparency, a core principle of open-source development, adds an extra layer of security to the software. The open nature of the source code allows users to examine it for potential security flaws or backdoors. 

Through community response and alert systems, and collaboration, this transparency ensures that issues can be identified and resolved quickly, instilling greater confidence in the security of email marketing processes, particularly for businesses handling sensitive customer data.

5. Freedom from Vendor Lock-In

Open source email marketing software mitigates the risk of vendor lock-in, a common concern with proprietary software. 

Users can freely switch vendors or modify the software, providing essential flexibility for businesses scaling operations, adapting to market changes, or integrating with diverse tools. Avoiding vendor lock-in ensures that businesses retain control over their email marketing infrastructure.

6. Unceasing Innovation

The collaborative nature of open-source development fosters a culture of continuous innovation. Regular introductions of new ideas and improvements keep the software at the forefront of technological advancements. 

Businesses leveraging open source email marketing software benefit from this ongoing innovation, gaining direct access to the latest features and functionalities without being dependent on a vendor’s release cycle. This agility enables businesses to stay competitive in the dynamic landscape of digital marketing.

Businesses seeking a robust and flexible solution for their email marketing endeavors can find substantial value in embracing open-source alternatives, aligning their strategies with the collaborative and transparent principles that define the open-source ethos.

What Are the Features of Open Source Email Marketing Software? 

In the fast-paced world of digital communication, email marketing remains a key tool for businesses looking to connect with their audience. As technology evolves, so does email marketing software. 

Open-source solutions have become popular, offering powerful features without the hefty price tag. Below are the key features of open source email marketing software. Let’s take a closer look at them!

Features of Open Source Email Marketing Software By SoftwareSuggest

1. Customization

One size rarely fits all in the business world. Open-source email marketing software acknowledges this, providing a high level of customization. Businesses can adjust the software to match their unique needs, from branding and design to functionality. Whether you’re a small online store or a big corporation, customization ensures your email marketing reflects your identity and connects with your target audience.

2. Community Support

A community is formed when one selects open-source email marketing software as opposed to merely using a tool. The vibrant community of open-source software comprises developers, marketers, and users who collaborate to enhance and introduce new ideas. 

A multitude of resources, security patches, and frequent updates are the products of this teamwork. The community is here to support you if you need guidance or encounter difficulties. It showcases the power of collaboration and shared knowledge, creating an environment where everyone can thrive.

3. Integration Capabilities

In today’s digital landscape, businesses use various tools to streamline their operations. Open source email marketing software understands the importance of seamless integration. 

Whether you use customer relationship management (CRM) software, analytics tools, or e-commerce platforms, open-source solutions offer integration capabilities for smooth data flow. This interconnected approach boosts the efficiency of your marketing efforts, providing a seamless functioning and comprehensive view of customer interactions and behaviors.

4. Security

Security is critical in digital communication, especially when sensitive customer data is involved. With a transparent and collaborative code development approach, open-source email marketing software prioritizes security. 

The collective scrutiny of the open-source community acts as a strong defense against vulnerabilities, ensuring the security of your data. Furthermore, businesses can implement additional security measures tailored to their specific needs, further fortifying their digital defenses.

By making use of open-source features, you contribute to a community-driven ecosystem that emphasizes cooperation and ongoing development in addition to improving your email marketing strategy. It’s time to unleash the potential of open-source and achieve unprecedented success with your email marketing campaigns.

Top 12 Best Open-Source Email Marketing Software

Selecting the best email marketing software is critical for effective communication with your target audience. Understanding that not all marketing tools work the same way is critical. Each software takes a unique approach to finding, engaging, and converting subscribers. 

These tools provide flexibility and customization, ensuring that your marketing strategy evolves in tandem with your changing needs, and delivery and response issues while also providing a cost-effective solution for businesses of all sizes. Let’s take a closer look at them!

Software NameFeatures
Programmable tags, Domain blacklisting
Analytics dashboards, Campaign scheduling
Customer relationship management, Sales management
Campaign management, Google AdWords visibility
Advanced campaign management, Program management
Subscriber management, Auto-response controls
Building and personalizing emails, Template Management
Campaign management, Marketing automation
Campaign automation, Customized email design
Campaign management, Sales funnel automation
Subscriber management, Mass texting
Email and mobile preview, Automated email responses

1. SendBlaster


Free stand-alone desktop email marketing software with thorough spam checks and useful reporting is offered by SendBlaster. The program provides personalized email support, mailing list management, HTML editing, newsletter creation, and embedded email support. 

With text snippets, a layout editor, categorized templates, and crop and replace capabilities, SendBlaster offers a high degree of customization. Advanced email features include moving, list merging, unsubscribing with just one click, and more.


  • Password protection
  • Programmable tags
  • Domain blacklisting
  • Template management


  • Free
  • For visually appealing, company-themed email campaigns, SendBlaster provides extensive template customization.
  • Make use of opt-in lists for targeted outreach to reduce the risk of unsolicited emails.
  • Efficient bounce management and message duplication prevention improve the dependability of email campaigns.
  • The lack of a SendBlaster mobile app limits the flexibility of email management on the go.
  • The user experience is badly impacted by the SendBlaster UI’s disarray and lack of customization options.

2. ResponseMagic


ResponseMagic uses hybrid opt-in technology to ensure secure and efficient delivery. The software includes a basic contact management feature to help with list organization. ResponseMagic provides unlimited broadcasting and opt-in functionality across multiple platforms. 

The software, which is complemented by an easy-to-use online email creator, facilitates advanced marketing initiatives by allowing users to create and distribute promotional materials. Stealthy analytics provides real-time insights, demographic data, and other advanced features for monitoring and evaluating the progress of marketing campaigns.


  • Automated messaging
  • Analytics dashboards
  • Campaign scheduling
  • Keyword tracking


  • Free
  • Response Magic ensures exceptional delivery and confirms opt-in for reliable communication.
  • Effortlessly manage lists with a user-friendly contact manager, free of charge.
  • Create and send promotions easily while enjoying stealth analytics for insights.
  • This software can get slowed down a bit in between
  • Users who are overloaded with analytics may find it difficult to gain meaningful insights without a lot of training.

3. Odoo Email Marketing

Odoo Email Marketing

Odoo is a useful set of business tools that includes an intuitive interface, and easy-to-use email marketing features. It’s simple to use and puts you in control of the style and feel of your emails. You can get it for free or subscribe for $5 per month.

Odoo provides secure emails with a drag-and-drop editor, WYSIWYG, and action buttons. Campaign management is simplified with capabilities such as contact importation, sample testing, custom email lists, and A/B testing. Odoo can even help you increase your email delivery rate by setting up a mail server and tracking undelivered emails. 


  • Customer relationship management
  • Sales management
  • Multi-warehouse management 
  • Finance and accounting


  • Free
  • Odoo’s robust tracking features and simple scheduling make bulk email campaigns efficient.
  • Use a range of pre-made templates to create effective and customized marketing emails.
  • Track the status of outgoing mail, including successes and failures, to gain insights into targeted marketing.
  • Odoo email marketing occasionally sends messages to spam folders, causing consumer annoyance.
  • Exporting and re-uploading contacts in the email marketing module should be simplified and improved.

4. OpenEMM


This open source email marketing software, which is free, is fantastic for automating email marketing campaigns. It simplifies the creation and distribution of newsletters and service communications. 

It also has a convenient campaign management system that helps you manage your leads in an organized fashion, with no restrictions on the number of subscribers, mailing lists, or emails you can send.

OpenEMM is simple to use and simplifies the creation and administration of service monitors. It works well in a wide range of network setups, including the most complex. 


  • Campaign management
  • Google AdWords visibility
  • Search marketing
  • Sales intelligence


  • Free
  • With its simple lead management and newsletter creation features, OpenEMM streamlines email marketing.
  • Take advantage of open-source features for marketing automation, such as event-triggered messaging and transaction emails with OpenEMM.
  • Discover tools that make managing leads, email campaigns, and marketing automation activities easy to use.
  • Due to a lack of user support, troubleshooting, and customization assistance may be challenging.
  • Because of the interface’s simplicity, advanced skills desired by experienced marketing professionals may be lacking.

5. Mautic


With its flexible features for email campaigns and marketing automation, Mautic stands out as a potent open-source marketing and email automation platform. Like OpenEMM, Mautic serves the demands of both small and large organizations by having no limitations on subscribers, mailing lists, or email traffic.

Mautic, a prominent participant in the marketing automation space, allows customers to create a free hosted account, making it available to a wide range of users. It is quite good at creating lists using hashtags, social media mentions, and keywords. Mautic allows for the easy tracking of both known and anonymous leads and allows for individualized email correspondence. 


  • Advanced campaign management
  • Program management
  • Social media marketing
  • Event marketing


  • Free
  • Mautic builds thorough user profiles to improve tailored email communication techniques.
  • Dynamic content and multilingual support increase user interest and interaction.
  • Insightful campaign optimization is enabled by comprehensive statistics.
  • Integration options are limited, making it difficult to collaborate seamlessly with other technologies.
  • Beginners may find the setup process too complicated for efficient use.

6. GNU Mailman

GNU Mailman

An excellent free Python program for managing email marketing is GNU Mailman. Although it is easy to use, it has a lot of strong features. Mailman provides transparency and a variety of features in spite of its simplicity. Its template collection is available for usage, and you may even create your own from the start or modify pre-existing ones. 

Campaign administration is simplified by automation and scheduling tools, which help marketers work more productively and save time. The Bounce Management System in Mailman is unique because it reduces problems with invalid or missing email addresses in your database. This lowers the number of bounces, ensuring more seamless marketing. 


  • Subscriber management
  • Auto-response controls
  • Emergency moderation
  • Multi-lingual support


  • Free
  • Since GNU Mailman is open-source and free, it is a cost-effective solution.
  • Complete command of your list, with minimal external dependencies and expenditures.
  • With this software’s unique features, communication is highly improved without incurring additional costs.
  • This software requires server space, which adds to the cost of hosting and upkeep.
  • Email delivery reliability may be hampered by IP blocks resulting from shared servers.

7. phpList


The phpList platform can be used in a variety of ways. The free edition of is completely free and includes all of the functionality needed for testing and sending campaigns. The free edition of is essentially a trial with no time constraints, offering basic options. 

You can choose a subscription plan or the Pro version to gain additional features like expanded database capacity or message restrictions. This enables customization based on your needs, whether you’re a casual user or need extensive features for managing larger mailing lists.


  • Email delivery management
  • Building and personalizing emails
  • Template Management
  • Subscriber management


  • Free
  • Using simplified forms and interesting landing pages, convert subscribers into leads.
  • Automatically filter out emails that cause bounces and divide leads for more focused targeting.
  • Monitor subscriber behavior, assess the efficacy of campaigns, and receive real-time notifications.
  • The interface of phpList is unclear and hostile, leading to user irritation.
  • The HTML editor in phpList is difficult for non-HTML users, making it difficult to create visually appealing email campaigns.

8. Brevo


Brevo is the go-to resource for all of your business needs, not simply your typical marketing platform. Brevo is a powerful solution that comes with chat, CRM, marketing automation, customizable features, and astute segmentation options. Think beyond basic emails and SMS. 

In addition, a landing page builder is a breeze to use, sign-up forms are user-friendly, and creating and distributing Facebook advertising is a skill. It serves as your one-stop shop, simplifying the marketing process for your company.


  • SMS marketing
  • Campaign management
  • Marketing automation
  • Landing pages development


  • Free
  • Brevo’s rapid information transmission system allows you to quickly relay time-sensitive data.
  • The freemium approach provides enhanced automation options that improve marketing efficiency at no cost.
  • Brevo’s unified platform, trusted by 300,000 organizations worldwide, allows you to manage client interactions easily.
  • Brevo’s shortcomings include a less-than-ideal deliverability rate and slow support response times.
  • Its drag-and-drop options are not up to pace, and its freemium and lite plans have some limits.

9. MailChimp


MailChimp stands out as an advanced open source email marketing tool designed for businesses of all sizes. Users can adapt the dashboard to meet their individual needs thanks to its great level of flexibility. To efficiently send bulk responses to segmented groups of subscribers, the software leverages automatic response and alarm systems.

Notably, MailChimp’s ad management function allows for advertising across multiple platforms, including Google and Facebook. Furthermore, the seamless interface with Google Analytics allows users to track daily reactions and subscriber interaction in great detail. 


  • Audience segmentation
  • Campaign automation
  • Customized email design
  • Sign-up forms


  • Free for 500 Contacts
  • For beginners, intuitive design guarantees simplicity of use and navigation.
  • This software makes it simple to run A/B and multivariate testing for the best possible campaign results.
  • Contacts may be easily imported from Squarespace, Shopify, Salesforce, and other systems.
  • The inability to schedule emails on the free subscription causes challenges.
  • Mailchimp branding and design constraints affect personalization for free plan customers.

10. Octeth


Octeth provides powerful on-premise email marketing solutions that enable multinational corporations. With the Octeth Community License, companies can send 10,000 subscribers optimized, GDPR-compliant bulk emails for free via their enterprise-grade platform. 

Octeth distinguishes itself by offering an advanced yet approachable mobile-friendly solution for businesses looking to communicate effectively and customize with their target audience.


  • Audience segmentation
  • Customizable auto-responders
  • Campaign management
  • Sales funnel automation


  • Free
  • With Octeth, business owners can have control and scalability over their on-premise email marketing solution.
  • GDPR-compliant, mass emails to 10,000 subscribers are made easy with Octeth’s free community edition.
  • The enterprise-grade Customer Data Platform from Octeth guarantees quick setup and GDPR compliance.
  • The potential competition for Octeth necessitates a greater emphasis on customer satisfaction.
  • As Octeth competes in the market, quality assurance is critical.

11. ListMessenger


With its surprisingly extensive feature set, ListMessenger is an exceptionally user-friendly email marketing tool. In spite of its ease of use, it has a fully automated vast message archive system for managing subscribers and a large message archive for effective alert and response management. 

With the help of the tool’s subscriber history and the ad management feature, users can keep track of crucial data, which makes it easier to create campaigns and messages that are specifically targeted. 


  • Subscriber management
  • Mass texting
  • Online reservations
  • Subcontractor management


  • Free
  • ListMessenger’s well-designed interface enhances website mailing list management.
  • ListMessenger is a lightweight application that seamlessly integrates powerful features for efficient use.
  • Its user-friendly design makes maintenance easier, giving website administrators a stress-free experience.
  • At times, this software can slow down and cause problems.
  • Limited customization options may restrict the tool’s adaptability to diverse needs.

12. ReachMail


Reach Mail, a well-known email marketing tool, is free for up to 5000 contacts and allows customers to easily build, plan, and send online campaigns while also providing affordability and flexible user and brand support. 

Reach Mail includes complex features such as DKIM and SKF, as well as vital utilities such as Google Analytics and File Manager. Its comprehensive API and Zapier integration are noteworthy, providing effortless interaction. The program also excels in list management, with capabilities like cleaning, imports, and segmentation. 


  • Email and mobile preview
  • Automated email responses
  • Email deliverability
  • Personalized emails


  • Free
  • Because of its simple and intuitive UI, Reach Mail is usable by users with varying degrees of experience in email marketing.
  • Reach Mail offers a flawless user experience with its fully functional API and Zapier connection.
  • Advanced list features like cleaning, segmentation, imports, and effective automation using Auto-Responders are made possible by this program.
  • The lack of a powerful auto-save feature can be unpleasant, forcing users to remember to save their work in order to prevent having to start over.
  • Users may require some time to grasp the flow and integration of Reach Mail’s capabilities, adding to the platform’s learning curve.

Wrapping Up

There is a wide range of powerful tools available in open-source email marketing software, each with unique features and advantages. Organizations looking to improve their email marketing tactics will find open-source solutions intriguing because of their cost-effectiveness, adaptability, community assistance, transparency, and security features. 

These platforms allow firms to maintain control over their email marketing service infrastructure while creating customized, effective, and secure email campaigns, all while integrating smoothly with a variety of technologies. Connect with our professionals to learn more about open-source email marketing software today!

Frequently Asked Questions

Yes, open-source email marketing software is often free, offering organizations cost-effective alternatives. Users can freely access, change, and distribute the program, and licensing payments are not required.

Because of this cost flexibility, firms can commit money to other elements of their operations, making open-source options appealing to budget-conscious users looking for robust email marketing solutions.

Mailtrain, Mautic, and phpList are examples of popular open source email marketing tools. These platforms cater to a wide range of customer needs by providing capabilities such as email campaign management, analytics, and customization. Each option offers distinct functionalities, allowing customers to select based on their own needs and preferences.

Basic IT knowledge is needed to set up open source email marketing software. Users need to be able to perform operations like database maintenance, server configuration, and web hosting environment navigation. Being proficient in these areas guarantees a seamless software installation and efficient use of its features.

Yes, with proper handling, open-source email marketing software can be secure. Crucial components include proper configuration, frequent updates, and adherence to security best practices, which include using encryption and strong passwords. To safeguard email marketing integrity, users should vigilantly monitor and promptly address any security vulnerabilities that arise.

Many open source email marketing software alternatives provide for seamless connection with a dedicated email marketing software tool. Customer Relationship Management (CRM) systems, e-commerce platforms, and analytics tools are examples of this.

This flexibility enables users to create a streamlined workflow, enhancing email marketing functionality and adopting a holistic approach to managing consumer interactions and data.

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