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Design newsletter or marketing campaigns easily with all our tools. Created in 2009, AcyMailing is the most robust and affordable solution on the market.

In the world of e-mail marketing and web development, the quality and security of communications are essential. That’s why we’ve put together a selection of powerful tools to help you optimise every aspect of your campaigns and development processes.


We are excited to introduce AcyChecker, a web content accessibility verification tool developed by our company, akin to the little brother of AcyMailing. AcyChecker is specifically designed to assist developers, website designers, and site owners in ensuring their content is accessible to everyone, including individuals with disabilities.

Here’s an overview of its key features:

  • Domain and SMTP verification
  • Role email checker
  • Disposable email
  • Email format checker
  • Tracking progress in improving website accessibility.

With AcyChecker, our commitment is to support our clients in their dedication to web accessibility while equipping them with a powerful and efficient tool to achieve this crucial goal.

👉 Discover


It is likely the most recognized tool among all the solutions mentioned in this article. Mail Tester is a website created by the founder of AcyMailing, offering unparalleled expertise in the realm of email verification and optimization.

Its interface is extremely intuitive, allowing you to quickly check the quality of your email address.

The usage is simple; you are prompted to send an email to a generic address. Then, you can verify the reputation of your emails in terms of spam.

MailTester analyzes several aspects, including:

  • The content of your email
  • Your reputation score according to SpamAssassin
  • Your authentication level (DKIM signature, DMARC test, server association, etc.)
  • Any blacklists where your email address may be listed.

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With over 625,000 clients registered, MailGenius is a heavyweight among Email Service Providers (ESPs).

Based on the same principle (for the free version) as MailTester, it allows you to check the undesirability of your email address in a few seconds.

MailGenius analyzes several aspects, including:

  • The effectiveness of your email subject
  • Ensuring compliance with authentication standards
  • Avoiding anti-spam filters
  • Checking for broken links in your content
  • Scheduling a free 30-minute call to assess your deliverability with an expert
  • Checking your listing on blacklists

👉 Discover


This tool is a powerful email security solution that helps businesses detect spoofing, monitor industry blacklists, track feedback loops, and much more.

GlockApps analyzes several aspects, including:

  • Checking the deliverability of their emails
  • Providing a report on any potential issues.
  • Generating reports so they can monitor the performance of their emails.
  • A comprehensive help center to address all your questions.

👉 Discover


Litmus is an online platform specializing in email marketing and email campaign testing. It provides a set of powerful tools for creating, testing, and analyzing email marketing campaigns to optimize their effectiveness and impact.

Litmus analyzes several aspects, including:

  • Email Creation
  • Testing and Previews
  • Performance Analysis and Tracking
  • Collaboration and Sharing
  • Training and Resources

👉 Discover


Mailtrap is an online service designed to assist developers and development teams in testing, visualizing, and debugging emails sent from their applications or websites, without the risk of sending real emails to unintended recipients.

Here’s a detailed description:

  • Secure testing and debugging of email sending functionality.
  • Email tagging for efficient organization.
  • Secure virtual environment to set up test mailboxes.
  • Visualization of emails generated by the application or website in a user-friendly dashboard.
  • Intercepting sent emails for review and issue detection.
  • Ability to create multiple test mailboxes.
  • Simulation of different email environments.
  • Mailbox sharing for seamless collaboration.

👉 Discover

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