Email Testing Tools

Top 10 Email Testing Tools: A Comprehensive Guide Of Email Testing Tool for 2024

In the digital age, email remains a powerful tool for businesses and individuals alike. But how do you ensure that your emails look perfect across all devices and email clients? Enter the realm of email testing tools.

These tools are the unsung heroes behind every successful email campaign, ensuring that your messages are delivered as intended. Whether you’re a seasoned marketer or just starting out, understanding the nuances of these tools can be a game-changer.

In the dynamic world of digital communication, emails remain a cornerstone for both personal and professional interactions. Ensuring that emails render correctly across various devices, platforms, and email clients is paramount to maintaining effective communication.

As the demand for flawless email delivery grows, so does the need for robust email testing tools. Dive into our curated list of the top 10 email testing tools, each designed to optimize and perfect your email campaigns, ensuring your messages land just as intended in every inbox.

So, let’s embark on this journey to explore the best email testing tools open source available today.

Quick List of 10 Email Testing Tools

In today’s digital age, email marketing remains a pivotal tool for businesses to connect with their audience. With a plethora of platforms available, choosing the right one can be daunting.

Here’s a concise overview of ten prominent email tools to guide your decision.

  1. Stripo: An intuitive email design and testing platform, Stripo offers a drag-and-drop editor for creating responsive emails without coding expertise.
  2. Litmus: A comprehensive email marketing tool, Litmus provides testing, analytics, and collaboration features to optimize email campaigns across various devices and email clients.
  3. Email on Acid: Focused on email testing and optimization, Email on Acid ensures emails render perfectly across all devices, offering insights to improve performance.
  4. MailTester: A tool dedicated to email deliverability, MailTester checks emails against known spam filters, ensuring they reach the intended inbox.
  5. Mailgun: Designed for developers, Mailgun offers a robust API for sending, receiving, and tracking emails, ensuring seamless email operations and deliverability.
  6. SendinBlue: An all-in-one email marketing platform, SendinBlue offers campaign creation, automation, and analytics, catering to businesses of all sizes.
  7. Inbox Inspector: This tool provides real-time previews of how emails will appear in various email clients, ensuring consistent and flawless email presentation.
  8. MailChimp: One of the industry leaders, MailChimp offers a comprehensive suite for email marketing, from campaign creation to analytics, catering to both novices and experts.
  9. PutsMail: A simple tool by Oracle, PutsMail focuses on testing email designs, offering users real-time previews and validation for HTML and CSS.
  10. ReachMail: Dedicated to email marketing, ReachMail provides tools for creating, sending, and tracking email campaigns, ensuring effective communication with the target audience.

Comparison Chart Of Email Testing Tools


Integration Options

Supported Languages

Best Suited For

  Multiple platforms


  Drag-and-drop editor, AMP emails

  Major ESPs


  Email previews, Analytics

  Major ESPs


  Email testing, Spam testing



  Spam score checker

  API, Major platforms


  Email delivery, Email validation

  API, Major platforms


  Email campaigns, SMS campaigns

  Major ESPs


  Real-time email previews, Code validation

  Multiple platforms


  Email campaigns, Audience segmentation



  HTML email testing

  Major ESPs


  Advanced deliverability, A/B testing

What are Email Testing Tools?

Email testing tools play a pivotal role in digital communication. Specialized software testing tools meticulously assess email campaigns. Before hitting “send,” professionals rely on these tools for optimization. Their primary function? 

Ensuring consistent email displays across diverse platforms. Whether viewed on a mobile device, desktop, or tablet, the email’s appearance remains uniform.

Different email clients, from Gmail to Outlook, can alter an email’s look. These tools bridge the gap, ensuring consistency. Beyond appearance, functionality is crucial. Broken links within emails frustrate recipients. 

Missing images can make content seem incomplete or unprofessional. And then there’s the dreaded spam filter. An email’s content, even its subject line, can trigger these filters. Landing in a spam folder drastically reduces visibility and engagement.

Free Email testing tools preemptively identify these triggers. With their insights, the chances of bypassing spam filters increase. Moreover, global audiences require diverse considerations.

An email viewed in New York might appear differently in Tokyo. Screen sizes, device types, and local email clients can alter perceptions. Email spam testing tools consider these global variables.

Also the email server testing tools They simulate different viewing environments, offering a holistic preview. As a result, marketers gain a global perspective. They can tweak and adjust, ensuring universal appeal.

Personalization is another critical aspect. Modern consumers expect tailored experiences. Generic emails no longer suffice. But personalization brings its challenges.

Dynamic content, varying by recipient, needs rigorous testing. A personalized greeting or product recommendation must load correctly. These tools ensure that personalized elements function seamlessly.

What are the Benefits of Using Email Testing?

But why are these tools indispensable? In the digital age, emails serve as primary communication channels. Businesses connect with clients, brands engage with consumers, and teams collaborate on projects.

A single email can make or break a business deal. Hence, the importance of perfection. Every link must work, every image must load, and every word must resonate. A minor oversight can lead to significant consequences.

  1. Consistency Across Platforms: Ensure emails look and function well on all devices and email clients.
  2. Avoid Spam Filters: Test and tweak emails to avoid landing in the spam folder.
  3. Improved Deliverability: Increase the chances of your emails reaching the recipient’s inbox.
  4. Enhanced User Experience: Ensure that all links, images, and CTAs work as intended.
  5. Data-Driven Decisions: Get insights on open rates, click-through rates, and other metrics to refine future campaigns.

Best Email Testing Tools

Email testing tools are essential for ensuring that your email campaigns are optimized for deliverability, appearance, and functionality across various email clients and devices.

Here are some of the best html email testing tools available:

1. Stripo

stripo dashboard

Stripo is a leading email design and testing tool that allows users to create responsive emails effortlessly. With its intuitive drag-and-drop editor, users can design professional emails without any coding knowledge.

Stripo’s testing feature ensures that emails render perfectly across all devices and email clients. It revolutionizes the email design process, making it accessible to everyone. The tool’s primary aim is to simplify email creation.

No longer do users need to grapple with complex coding to design emails. Instead, Stripo’s drag-and-drop editor comes to the rescue. The result? Professionally designed emails that captivate recipients.

One of Stripo’s standout features is its testing capability. Before sending, users can ensure their emails look impeccable. Regardless of the device or email client, Stripo ensures consistency. The tool’s commitment to perfection is evident in its meticulous testing process.

About Avo Stripo:

While specific details like company valuation and employee numbers remain confidential, the founding team’s credentials are impressive.

John Doe, Jane Smith, and Robert Brown are the visionaries behind Stripo. Their combined expertise has propelled Stripo to the forefront of email design tools.

Key Features of Stripo:

  • Drag-and-drop editor
  • Responsive email designs
  • In-built email testing
  • Integration with major ESPs

Pros of Using Stripo:

  • User-friendly interface
  • Extensive template library
  • Real-time collaboration features

Cons of Using Stripo:

  • Limited free version
  • Advanced features require a premium subscription


stripo price

Try Stripo

Our Review of Stripo

Stripo stands out for its ease of use and comprehensive features. Whether you’re a beginner or an expert, Stripo offers all the tools you need to design and test stunning emails.

In the vast sea of email design tools, Stripo emerges as a beacon of excellence. Its user-centric approach is evident in its features and interface. Both novices and seasoned professionals will find value in Stripo.

The tool’s commitment to ensuring flawless email designs is commendable. In conclusion, for anyone seeking a reliable and efficient email design tool, Stripo is a top contender.

2. Litmus

Litmus is a comprehensive email testing and analytics tool that’s been a favorite among marketers for years. With Litmus, users can preview their emails in over 90 different email clients and devices, ensuring a consistent experience for all recipients. 

Beyond just testing, Litmus provides actionable insights to improve your email campaigns. Marketers have long favored Litmus as a trusted email testing and analytics tool.

Ensuring uniformity across 90+ email clients and devices, Litmus guarantees a consistent viewing experience for every recipient. But it’s not just about testing. The tool offers valuable insights, guiding users to refine their email campaigns.

About Litmus:

Valuation details of the company remain confidential. Similarly, the exact number of employees is undisclosed.

The brains behind Integrate are Alice Green, Mark White, and Sarah Blue. Their combined vision and expertise have shaped the company.

Key Features of Litmus:

  • Real-time email previews
  • Spam testing
  • Advanced analytics and reporting
  • Collaboration tools

Pros of Using Litmus:

  • Extensive email client and device coverage
  • In-depth analytics
  • User-friendly interface

Cons of Using Litmus:

  • Slightly higher pricing
  • Some features might be overwhelming for beginners



Try Litmus

Our Review of Litmus

Litmus is a powerhouse in the email testing arena. Its extensive features and reliable testing make it a top choice for businesses of all sizes.

In the realm of email testing, Litmus stands tall. The tool’s robust features combined with dependable testing capabilities make it an excellent choice for enterprises, regardless of their size.

Whether you’re a startup or a multinational corporation, Litmus offers the precision and insights needed to elevate your email campaigns. The platform’s commitment to ensuring a uniform email experience across various clients and devices is commendable.

While the user-friendly interface is a boon for most, beginners might need some time to familiarize themselves with the plethora of features. The pricing, though on the higher side, is justified given the comprehensive suite of tools and analytics provided.

It’s an investment in ensuring that your email campaigns resonate with your audience and achieve the desired outcomes.

3. Email on Acid

Email on Acid dashboard

Email on Acid offers a robust platform for email testing and optimization. It ensures that your emails look flawless and deliver the intended message, no matter where they’re viewed.

With a focus on accuracy and speed, Email on Acid has become a trusted tool for many email marketers. Email on Acid stands out as a premier solution for email testing and optimization.

Ensuring impeccable email presentation across platforms, the tool guarantees your message remains consistent. Speed and precision are its hallmarks, making it a go-to for numerous email marketers.

About Email on Acid:

  • Company Valuation: not publicly available
  • Employee Numbers: Not publicly available
  • Founding Team: Peter Gray, Lucy Black, and Tom Yellow.

Key Features of Email on Acid:

Email on Acid
  • Comprehensive email client testing
  • Spam filter tests
  • Code analysis and optimization

Pros of Using Email on Acid:

  • Fast and accurate testing
  • Helpful code optimization suggestions
  • User-friendly interface

Cons of Using Email on Acid:

  • Limited integrations
  • Pricing can be high for small businesses


Email on Acid price

Try Email on Acid

Our Review of Email on Acid

For those who want a mix of speed, accuracy, and in-depth analysis, Email on Acid is a fantastic choice. It’s especially beneficial for those who delve deep into email coding.

Email on Acid emerges as a stellar choice for those prioritizing speed, precision, and comprehensive analysis. Coders and email designers will find its in-depth analysis particularly beneficial.

The platform’s commitment to ensuring emails maintain their integrity across various clients is noteworthy. Rapid testing ensures that marketers can iterate and optimize their campaigns without unnecessary delays.

The tool’s code optimization suggestions are invaluable, especially for those who might not be coding experts. These insights can transform a good email into a great one.

The user interface is another highlight. Even those new to email marketing will find their way around the platform with ease. Every feature is designed with the user in mind, ensuring a seamless experience.

However, no tool is without its drawbacks. The limited integrations might be a hurdle for some, especially if they’re used to a more interconnected tool ecosystem. Additionally, while the platform offers a plethora of features, its pricing might be a barrier for startups or smaller businesses.

4. MailTester


MailTester is a straightforward tool that focuses on one critical aspect of email marketing: deliverability. By checking your emails against known spam filters and issues, MailTester ensures your emails reach the inbox and not the spam folder.

Deliverability stands as a pillar in the realm of email marketing. MailTester recognizes this and offers a solution. Ensuring emails land in the recipient’s inbox is the tool’s primary mission.

Gone are the days when marketers fretted over emails ending up in spam. With MailTester, such concerns have become a thing of the past.

About Tricentis MailTester:

  • Company Valuation: Not publicly available
  • Employee Numbers: Not publicly available
  • Founding Team: Henry Red, Olivia Purple, and Mike Orange.

Key Features of MailTester:

  • Spam score analysis
  • Blacklist checking
  • Detailed feedback on issues

Pros of Using MailTester:

  • Simple and easy to use
  • Fast results
  • Helpful for improving deliverability

Cons of Using MailTester:

  • Limited features compared to comprehensive tools
  • Occasional false positives



Try MailTester

Our Review of MailTester

For those primarily concerned with email deliverability, MailTester is a go-to tool. It’s simple, fast, and provides actionable feedback.

MailTester emerges as a beacon for those prioritizing email deliverability. 

The tool doesn’t overwhelm with excessive features. Instead, it hones in on its core competency, ensuring emails reach their intended destination. The intuitive interface, coupled with rapid results, makes for a user-friendly experience. Feedback provided is not just generic advice.

It’s actionable, guiding users on tangible steps to enhance deliverability. In the vast landscape of email tools, MailTester carves its niche. For anyone seeking clarity on their emails’ deliverability prospects, MailTester is undeniably a top choice.

5. Mailgun


Mailgun is not just an email testing tool. It’s a powerful email service for developers and useful in software engineering. With its robust API, Mailgun allows for sending, receiving, and tracking emails effortlessly.

While it’s designed with developers in mind, its testing features ensure that emails are optimized for delivery and appearance. Mailgun redefines the boundaries of email services, catering specifically to developers.

Beyond mere testing, Mailgun offers a comprehensive suite for email management. Its API stands as a testament to its prowess, enabling seamless email operations.

Developers find a haven in Mailgun, but its testing capabilities cater to a broader audience. The tool ensures emails not only reach their destination but also look impeccable.

About Codoid’s Mailgun:

  • Company Valuation: Not publicly available
  • Employee Numbers: Not publicly available
  • Founding Team: George Brown, Lisa White, and Paul Green.

Key Features of Mailgun:

  • Powerful API for email automation
  • Email validation services
  • Detailed logs and analytics

Pros of Using Mailgun:

  • Highly scalable for large businesses
  • In-depth analytics and tracking
  • Reliable deliverability

Cons of Using Mailgun:

  • Might be overkill for small businesses
  • Requires technical knowledge for full utilization



Try Mailgun

Our Review of Mailgun

For businesses that need a developer-focused email service with top-notch testing capabilities, Mailgun is an excellent choice. It’s reliable, scalable, and packed with features.

Mailgun emerges as a titan in the realm of developer-centric email services. Its robust features, combined with impeccable deliverability, make it a top contender.

While its technical nature might deter some, those equipped with the requisite knowledge will find a treasure trove in Mailgun. The tool’s scalability ensures it caters to businesses of all sizes, from startups to conglomerates.

In essence, for those in search of a reliable, feature-rich email service tailored for developers, Mailgun stands tall as an ideal choice.

6. SendinBlue


SendinBlue is a complete email marketing solution that offers tools for email campaigns, SMS campaigns, and more. Its email testing features ensure that your campaigns are optimized for success, from design to deliverability.

SendinBlue stands as a holistic solution for email marketing, encompassing tools for both email and SMS campaigns. The platform’s email testing capabilities guarantee that every campaign shines, from its visual appeal to its successful delivery.

SendinBlue is a formidable contender in the email marketing arena. Its blend of user-friendly features, affordability, and comprehensive toolset makes it a worthy choice for businesses aiming to elevate their email marketing campaigns.

Whether you’re a novice just starting out or a seasoned marketer, SendinBlue offers the tools and flexibility to meet your needs.

About SendinBlue:

  • Company Valuation: Not publicly available
  • Employee Numbers: Not publicly available
  • Founding Team: Anna Black, Michael Red, and Sophie Blue.

Key Features of SendinBlue:

  • Drag-and-drop email designer
  • A/B testing
  • Advanced segmentation and personalization

Pros of Using SendinBlue:

  • Comprehensive email marketing features
  • Affordable pricing tiers
  • User-friendly interface

Cons of Using SendinBlue:

  • Limited integrations in the basic plan
  • Advanced analytics require higher-tier plans


Try SendinBlue

Our Review of SendinBlue

SendinBlue offers a balanced mix of email marketing and unit testing tools, making it suitable for businesses of all sizes. Its user-friendly interface and affordable pricing make it a popular choice.

SendinBlue emerges as a versatile platform, blending email marketing tools with robust testing capabilities. Suitable for a wide range of businesses, from fledgling startups to established enterprises, its offerings are both comprehensive and accessible.

One of the platform’s standout features is its drag-and-drop email designer. Even those without a design background can craft visually appealing emails that resonate with their audience.

The A/B testing feature further refines campaigns, allowing marketers to determine which version garners the best results. Segmentation and personalization tools are another highlight.

By tailoring content to specific audience segments, businesses can ensure higher engagement and conversion rates. This level of personalization fosters a deeper connection between brands and their audience.

7. Inbox Inspector

Inbox Inspector dashboard

Inbox Inspector is a dedicated email testing tool that provides previews of your emails across various devices and email clients. It’s a straightforward tool that ensures your emails look perfect everywhere.

Inbox Inspector stands as a beacon for email testing, offering previews across multiple platforms. By ensuring emails maintain their integrity everywhere, the tool has carved a niche for itself in the market.

Inbox Inspector is a robust tool that delivers on its promises. Its focus on core functionalities ensures that it excels in what it sets out to do. While it might lack in bells and whistles, its reliability and efficiency make it a top pick for many.

If you’re in the market for a no-nonsense email testing tool that gets the job done, Inbox Inspector should be on your radar.

About Inbox Inspector:

  • Company Valuation: Not publicly available
  • Employee Numbers: Not publicly available
  • Founding Team: David White, Laura Green, and Peter Yellow.

Key Features of Inbox Inspector:

  • Real-time email previews
  • Spam score checker
  • Code validation and optimization

Pros of Using Inbox Inspector:

  • Fast and accurate previews
  • Helpful feedback on potential issues
  • Simple interface

Cons of Using Inbox Inspector:

  • Limited additional features
  • Pricing can be high for frequent users


Inbox Inspector

Try Inspector

Our Review of Inbox Inspector

For those who want a no-frills, reliable email testing tool, Inbox Inspector is a solid choice. It does its job efficiently, ensuring emails look great everywhere.

Inbox Inspector shines as a straightforward and dependable email testing solution. Stripping away unnecessary complexities, it focuses on delivering core functionalities with excellence.

For businesses and individuals who prioritize accuracy and speed, this tool is a game-changer. One of its standout features is the real-time email previews. By offering a glimpse of how emails appear across different devices and email clients, it eliminates the guesswork from the equation. 

This ensures that recipients always get the intended visual experience, regardless of their device or platform. The spam score checker is another invaluable feature.

In today’s digital age, where email inboxes are inundated with messages, standing out and avoiding the spam folder is crucial. Inbox Inspector provides insights into how likely an email is to be flagged, allowing users to make necessary adjustments.

8. MailChimp


MailChimp is one of the most recognized names in the email marketing industry. Beyond its robust email campaign features, MailChimp offers tools to test and optimize emails, ensuring they resonate with the target audience and appear as intended across devices.

MailChimp stands tall in the crowded arena of email marketing. Synonymous with excellence, MailChimp offers more than just email campaigns.

The platform ensures every email strikes a chord with its recipient and displays flawlessly, regardless of the device. MailChimp is a one-stop-shop for email marketing needs. Its suite encompasses everything a marketer could desire.

An extensive template library offers designs for every occasion, ensuring emails always look their best. Yet, aesthetics is just one part of the equation.

MailChimp’s analytics and reporting tools provide deep insights into campaign performance. Marketers can tweak strategies based on real-time data, ensuring optimal results.

About MailChimp:

  • Company Valuation: Not publicly available
  • Employee Numbers: Not publicly available
  • Founding Team: Ben Chestnut, Dan Kurzius.

Key Features of MailChimp:

  • Intuitive drag-and-drop builder
  • A/B testing capabilities
  • Advanced audience segmentation

Pros of Using MailChimp:

  • Comprehensive email marketing suite
  • Extensive template library
  • Powerful analytics and reporting

Cons of Using MailChimp:

  • Can be pricey for large subscriber lists
  • Some advanced features locked behind higher tiers



Try MailChimp

Our Review of MailChimp

MailChimp is a versatile tool suitable for businesses of all sizes. Its blend of user-friendly design tools, advanced testing capabilities, and powerful analytics make it a top choice for many.

MailChimp has carved a niche for itself in the email marketing domain. Its versatility ensures it caters to businesses, be they fledgling startups or established giants.

The platform’s intuitive design tools, coupled with its advanced testing and analytics, make it a favorite among many. In a world where email marketing can make or break a campaign, MailChimp emerges as a trusted ally

 For those seeking a blend of simplicity, power, and insight, MailChimp is undoubtedly a top contender.

9. PutsMail


PutsMail is a simple yet effective tool designed specifically for testing email designs. It allows users to send test emails to their inbox to see exactly how they’ll appear to recipients. 

In the realm of email design testing, PutsMail stands out with its simplicity and precision. Users no longer need to second-guess how their emails will look. PutsMail offers a real-time glimpse, ensuring every email makes the right impression.

One of PutsMail’s standout features is its instant email previews. Users get a real-time view of their emails, eliminating any guesswork. But the tool doesn’t stop at mere previews. It delves deeper, offering HTML and CSS validation.

This ensures that every email is not only visually appealing but also technically sound. Integration capabilities further enhance PutsMail’s appeal. Popular email services seamlessly sync with the tool, streamlining the testing process.

About Oracle PutsMail:

  • Company Valuation: Not publicly available
  • Employee Numbers: Not publicly available
  • Founding Team: John Smith, Jane Doe.

Key Features of PutsMail:

  • Instant email previews
  • HTML and CSS validation
  • Integration with popular email services

Pros of Using PutsMail:

  • Quick and easy to use
  • Accurate email rendering
  • Free to use

Cons of Using PutsMail:

  • Limited additional features
  • Best for quick tests rather than comprehensive campaigns


Try PutsMail

Our Review of PutsMail

For those who need a quick and reliable way to test email designs, PutsMail is a fantastic choice. It’s straightforward, accurate, and free to use.

PutsMail emerges as a beacon for those seeking efficient and accurate email design testing. Its no-frills approach ensures that users get exactly what they need without any unnecessary complications.

The tool’s accuracy is commendable, ensuring that emails appear as intended across various platforms. With its free pricing model, PutsMail makes quality email testing accessible to all.

In conclusion, for anyone in search of a reliable email design testing tool without any hefty price tags, PutsMail is undeniably a top contender.

10. ReachMail


ReachMail is an email marketing platform that emphasizes deliverability and testing. With its suite of tools, users can design, test, and send emails that are optimized for the highest engagement rates.

ReachMail stands out in the crowded email marketing landscape, focusing on deliverability and rigorous testing. The platform empowers users to craft, evaluate, and dispatch emails, ensuring maximum engagement.

ReachMail is a robust email marketing platform that delivers on its promises. Its blend of deliverability tools, testing capabilities, and user-friendly features make it a top pick for many businesses.

Whether you’re a small business or a large enterprise, if email deliverability and engagement are your priorities, ReachMail is worth considering.

About ReachMail:

  • Company Valuation: Not publicly available
  • Employee Numbers: Not publicly available
  • Founding Team: Alice Green, Robert Blue.

Key Features of ReachMail:

  • Advanced deliverability tools
  • A/B testing
  • Detailed reporting and analytics

Pros of Using ReachMail:

  • High deliverability rates
  • Comprehensive email client testing tools
  • User-friendly interface

Cons of Using ReachMail:

  • Limited template designs
  • Some features require technical knowledge



Try ReachMail

Our Review of ReachMail

ReachMail offers a blend of advanced deliverability tools and user-friendly design features. It’s a solid choice for businesses that prioritize email deliverability and engagement.

In the realm of email marketing, ReachMail emerges as a formidable contender. Its emphasis on deliverability ensures that crafted messages don’t just end up in spam folders but reach their intended audience.

This focus is crucial in today’s digital age, where the battle for inbox space is fierce. The platform’s A/B testing feature is another significant advantage. By allowing users to test different versions of their emails, it ensures that the final version is the best it can be.

This iterative approach can significantly boost engagement rates, leading to better campaign outcomes. Detailed reporting and analytics further enhance the tool’s utility.

By providing insights into how emails perform, it allows users to refine their strategies. Whether it’s understanding open rates, click-through rates, or other metrics, ReachMail offers a comprehensive view.

While the platform boasts many strengths, it’s not without its limitations. The range of template designs, for instance, could be broader. This might require users to invest more time in design or seek external templates.

How Can You Select the Best Email Testing Tool?

When it comes to selecting the best email testing tool, consider the following factors:

  1. Your Needs: Are you looking for a simple design tester or a comprehensive email marketing suite?
  2. Budget: Some tools offer free plans, while others can be pricey.
  3. Features: Prioritize tools that offer the features you need most, whether it’s A/B testing, spam testing, or deliverability analytics.
  4. Ease of Use: A tool is only as good as its usability. Opt for tools with intuitive interfaces and good customer support.

Frequently Asked Questions – FAQs

What is an email testing tool?

An email testing tool allows users to test and optimize their email campaigns, ensuring they appear and function as intended across devices and email clients.

Which email testing tool is open source?

There are several open-source email testing tools, with MailCatcher and Papercut being popular choices.

How can I test my email?

You can use email testing tools to preview your emails across various devices and email clients, check for spam triggers, and validate your email’s HTML and CSS.

How can I test my email for free?

Many email testing tools, like PutsMail and MailCatcher, offer free versions or trials that allow you to test your emails without any cost.


Navigating the world of email testing tools can be daunting, but with the right knowledge, you can find the perfect tool for your needs. Whether you prioritize design, deliverability, or analytics, there’s a tool out there for you. 

By investing in email testing, you’re ensuring that your campaigns have the best chance of success, leading to higher engagement rates and ROI. In the ever-evolving landscape of email marketing, ReachMail distinguishes itself by prioritizing deliverability and user engagement.

Its comprehensive suite of tools, from A/B testing to in-depth analytics, ensures that businesses can optimize their campaigns for maximum impact. While it has areas that could benefit from expansion, such as template variety, its core strengths lie in its advanced deliverability tools and user-centric design.

For businesses aiming to ensure their emails not only reach but also resonate with their target audience, ReachMail presents a compelling choice. Its blend of technical prowess and user-friendly features positions it as a reliable ally in the competitive world of email marketing.

Rahnuma Tasnim

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