Best Open Source Email Marketing Software

In this blog post, we’ll take a look at the top open source email marketing software options that are available to businesses today.

If you’ve been looking for open source email marketing software, you’ve probably realized that there’s a lot of information out there. It can be overwhelming, and it can be hard to know where to start.

To help you make an informed decision, we’ve compiled a list of the best open source email marketing software options available today.

Best Open Source Email Marketing Software

GNU Mailman

GNU Mailman is a free and open source Python software for managing email marketing campaigns and mailing databases. Its strengths are the transparency of the interface and interesting functionalities – despite the apparent simplicity of the tool, there are many of them.

This email marketing software has its own template library, however, the user can also modify the existing ones or create their own templates from scratch. Thanks to the automation and ability to schedule message sending, marketers can more efficiently manage the campaign and save valuable time. Mailman has a Bounce Management System that helps to minimize the number of bounces resulting from incorrect or non-existent email addresses that may get into your mailing database.

When using Mailman, you have the ability to freely browse the campaigns that have already been carried out. They are collected in an archive where you can find any campaign and analyze its content and settings.

The developers of the software made sure that the user has access to customer support in multiple languages. In addition, this tool is integrated with Google Analytics used by many companies. It’s also possible to integrate Mailman with your website, which greatly facilitates the daily work of marketers. Thanks to this, you’ll optimize the use of the data collected by your company through the web page and its related business tools.


Another open source and free email marketing software on the market is OpenEMM. There are no limits to the number of subscribers, created mailing lists, or the number of sent emails. Like Mailman, this tool is easy to use due to its intuitive interface. The user panel can be personalized and is responsive, so you can use the tool on any device. You can also use ready-made templates to help you create your messages.

The user panel in OpenEMM, the open source email marketing platform

Source: Twitter OpenEMM

Real-time statistics on campaign effectiveness will help you manage your mailing campaigns and increase their effectiveness. The reduction in the number of bounces will also impact it. It’s possible thanks to the bounce management system.

In addition to standard email marketing, you can use the software to send transaction confirmations to customers or autoresponders. The extensive OpenEMM documentation will help you work with the mailing tool. An additional functionality that will improve the daily work of a marketer at your company will be the calendar that allows you to add reminders and comments regarding tasks. Thanks to the filters that facilitate viewing the content, you can also quickly find the mailing project you created, review it or modify it.


SendBlaster is a platform available in free and paid (pro) versions. It can be adapted extensively to the individual needs of the company. You get access to a database of ready-made templates categorized by the type of recipient or topic. You can edit them and adapt to the visual theme of your company. SendBlaster offers you the editor that allows you to customize the photos you want to use in your mailing. The editor has various filters that you can apply to graphics.

The graphical editor in SendBlaster mailing tool allows you to customize your photos

Source: SendBlaster

The platform allows creating an opt-in permission-based list of addresses, which reduces the risk of sending information to a user who hasn’t given their consent to receive the message. Like the other tools described above, SendBlaster uses the Bounce Management System to regularly delete or block email addresses bouncing the messages. The platform also automatically prevents the resending of the same message to one client. It also has a tool for mailing planning and managing the details of paid email campaigns.

You can integrate the tool with the company’s website. It’s also integrated with Google Analytics. The paid version is available after purchasing a license (it’s a one-time expense for a company), it allows you to create personalized messages for each contact in your mailing database and segment the addresses.


There are several ways to use the phpList platform. offers a completely free version of this mailing program. However, in the case of, the free version is in fact a trial version with no time limit and gives only the basic options, i.e. testing and sending campaigns to recipients. You can also get access to additional features if you choose to pay for the size of the mailing database, the number of messages sent or if you purchase the Pro version.

The user panel in phpList, an email marketing tool

Source: phpList

The tool analyzes the bounces and automatically selects and removes from the database the email addresses that generate them. It provides access to the history of recipients’ activity and their demographic data. Segmentation is also available. Using the Subscriber Management System you can sort your leads based on activity (and more), and then send them the content tailored to their expectations.

PhpList gives the user access to campaign effectiveness analysis and allows observing the subscribers’ behaviour in real time. Additional statistics are provided by integrating the tool with Google Analytics. The email platform also has an automatic notification system that’ll keep you up-to-date with the information about your mailing campaigns, e.g. the statistics on the number of bounces or message openings.


Mautic is an open source marketing automation tool that allows you to send email campaigns and use extensive marketing automation functionalities. Like OpenEMM, it doesn’t impose any limits on the number of subscribers, mailing lists or emails sent, making it a good choice for both smaller and larger enterprises.

The user panel in Mautic, an open source email and marketing automation platform

Source: Twitter

When a recipient first visits your site, Mautic creates a profile for that user. From that moment, it records the sources of visits to the company’s site, the time spent on the page and the activities undertaken by them. Thanks to this information, it’s possible to perform an advanced contacts segmentation in the mailing database, based on even just a few properties, and then – to personalize the email messages.

Mautic allows sending mass, transactional and individual messages. You can add dynamic content to the mailing (it consists of inserting a few topics, the sender, contents or graphic elements that change in the message depending on the characteristics describing the subscriber) and attachments. The tool helps you translate messages into different languages and plan their sending. You also have access to statistics regarding clicks and message openings, so you can better understand how the users react to your campaigns.

self hosted email marketing software

1) MailWizz

MailWizz is a self hosted email marketing software which is written in PHP and MySQL. This application is suitable for both beginners and experts. It provides a detailed overview dashboard that enables you to manage your mails with ease. MailWizz enables you to create an unlimited separate customer account. It allows you to send mass emails to clients with no hassle.



  • Create autoresponders, recurring campaigns, or regular campaigns.
  • You can send campaigns based on JSON feeds or external RSS.
  • Get detailed reports according to your campaigns and share it with anyone.
  • Send your emails with any SMTP server, SparkPost, Amazon SES, MailGun, and more.
  • It enables you to import your subscribers from a text file, external database, or CSV file.
  • You can create custom fields required for your subscribers.
  • This application enables you to manage all your surveys created throughout the system.

2) Campaigns


Campaigns is email marketing software that helps you to increase your sales with no hassle. It enables you to quickly create mail using ready-made templates. This tool allows you to make a personal connection with personalized email campaigns.


  • This software provides you analytics in real time.
  • It is integrated with Zoho CRM.
  • Enables you to automate your email marketing.
  • Offers drag and drop editor.
  • Share your campaigns on social media.

3) Interspire

Interspire is the best email marketing softwares. It can be easily used to turn your leads into buyers. Interspire app helps you to create, send, and track emails for marketing. This application is specifically built to automate your follow up marketing. The tool allows you to send personalized email messages to your new leads.



  • This self hosted email marketing application can remove inactive leads from your list.
  • It helps you to optimize your click-through rate.
  • You can see the complete activity of a lead with event logging.
  • The tool has a drag and drop editor that can customize surveys and feedback forms that you can link with your email campaigns.
  • This open source email marketing software offers a user-friendly interface to manage your emails.
  • You can keep your list up to date with automated bounce processing.
  • Interspire software provides easy to read summary report.

4) Sendy

Sendy is one of the best self-hosted email marketing solutions built in PHP. It enables you to send newsletters via Amazon SES (Simple Email Service). This open-source email marketing software offers reports to see the result of every campaign. Sendy automates your marketing by sending bulk emails. Sendy allows you to block emails belonging to certain domains from signing up on your list.



  • It provides campaign builder, automatic bounce handling, reporting, and more.
  • You can filter out emails with ease.
  • Sendy provides you a notification when someone subscribes to the list.
  • This app enables you to create a suppression list of emails.
  • This open source email marketing software helps you to clean inactive or unconfirmed subscriber mails.


5) Octeth

Octeth is a self hosted email marketing service that helps you to setup mail series depend on triggers like subscription info or email clicks. This application allows you to create and manage more than one user account with ease. It can identify a bounced email address that you can easily filter from your user list.



  • It provides reports for email opens, clicks, links, invalid emails, and more.
  • You can schedule your emails with ease.
  • This email marketing platform enables you to know the log of every activity of subscribers.
  • It allows you to collect information about your subscriber.
  • Octeth has easy to use easy to use subscription form designer.
  • You will get email notification whenever subscription or unsubscription occurs.
  • It offers a wizard to create your email.
  • The tool can be used to publish emails on Facebook, Twitter, MySpace, and more.


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