Email Marketing & Automation

Mail-Tester: A Free Tool to Check Your Email Newsletter Against Common SPAM Issues

Email communication remains an essential part of our daily lives. Whether you’re sending out newsletters, marketing campaigns, or important messages, the last thing you want is for your emails to vanish into the abyss of the spam folder. That’s where Mail-Tester comes to the rescue, offering you a simple yet powerful solution to ensure your emails reach their intended recipients’ inboxes.

What is Mail-Tester?

Mail-Tester is your secret weapon against the email deliverability challenge. It’s an innovative tool designed by a team of geeky email software engineers searching for a cost-effective and efficient way to test the quality of their newsletters. Now, they’re sharing this tool with the world, and it’s available to you for free through a user-friendly web interface.

mail tester

Mail-Tester operates like a wizard for email deliverability. Here’s how it works in three straightforward steps:

  1. Generate a Unique Email Address: When you access Mail-Tester, it creates a random email address just for you. This unique address will serve as your test recipient.
  2. Send a Test Email: Use your favorite email or newsletter software to send a message to the generated email address. It’s as simple as addressing an email to this unique destination.
  3. Get Your Spam Score: Click the Check your score button after sending your test email. In no time, Mail-Tester’s digital snail will work its magic and provide you with a spam score.

What Does Mail-Tester Analyze?

Mail-Tester doesn’t stop at a single score. It dives deep into your email’s anatomy, mail server, sending IP, and more. The result is a comprehensive report highlighting what’s configured properly and what needs your attention.

Mail-Tester employs SpamAssassin, a widely-used open-source spam filter, for its content testing. This sophisticated tool helps assess your email’s chances of bypassing spam filters. Understanding SpamAssassin’s workings can be invaluable in mastering email deliverability.

Mail-Tester employs a scoring system from 0 to 10, with 10 being the golden standard. Your aim is to score a perfect 10/10, and Mail-Tester equips you with the tools to help you reach that pinnacle by offering you insights into the intricacies of email deliverability. For instance:

  • Perfect Score, But Still in Spam: Sometimes, what passes in Mail-Tester might not make it to your recipients’ inboxes. Various spam filters have their unique algorithms, and user preferences also come into play.
  • My Emails Are Neither in the Inbox nor in Spam: If your emails seem to disappear entirely, it might be due to your sending server being blacklisted. Mail-Tester guides you on when it’s time to change your sending method.

Mail-Tester understands the importance of privacy. Your emails and addresses are never shared, resold, or disclosed to anyone. Only individuals with the exact address can access your results. Mail-Tester safeguards your data from search engine bots and malicious spammers. Results and emails are automatically deleted within seven days for free users and 30 days for those with accounts.

Here’s the resulting report for Martech Zone’s newsletter:

mail tester result

To ensure the smooth functioning of Mail-Tester, users are encouraged to adhere to usage restrictions. These include refraining from interfering with the service’s operations and avoiding actions that place an unreasonable load on their infrastructure.

Mail-Tester API

Mail-Tester offers an iframe and a JSON API with its paid plans for those looking to take their email deliverability to the next level. This integration allows you to incorporate Mail-Tester results directly into your software, streamlining your email optimization efforts.

Whether you’re a marketer, a business owner, or someone who values effective email communication, Mail-Tester is your gateway to the inbox. Say goodbye to the spam folder and hello to email success with Mail-Tester!

Test Your Email With Mail-Tester

Douglas Karr

Douglas Karr is CMO of OpenINSIGHTS and the founder of the Martech Zone. Douglas has helped dozens of successful MarTech startups, has assisted in the due diligence of over $5 bil in Martech acquisitions and investments, and continues to assist companies in implementing and automating their sales and marketing strategies. Douglas is an internationally recognized digital transformation and MarTech expert and speaker. Douglas is also a published author of a Dummie's guide and a business leadership book.

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