You are currently viewing 15 Best Free Email Spam Checker Tools to Ensure Inbox Placement
  • Post category:Free Tools
  • Reading time:10 mins read

Spam is an issue that affects every business and individual online. That’s why there are so many email spam checker tools available these days. Writing engaging copy and creating responsive email design is not enough in email marketing. Email testing is important for running a successful email marketing campaign. Every marketer should test their email before sending it to recipients. Don’t be afraid of email testing. There are many best free email spam checker tools available to check your email spam score, deliverability, and even email rendering issues.

If you are an email marketer, you already know how complex and stressful it is to send emails. Sending emails is half of your job, but perhaps even more important, deliverability is a critical key for any campaign you want to run. We’re here to help you improve the deliverability and sustainability of your campaigns by using free email spam analyzer tools.


15 Best free email spam checker and email testing tools

There are many spam checker tools around, and we’ve tried most of them. Here is a list that we think might be helpful. When it comes to checking your email in general, some services offer a free basic version, while others are paid premiums. Please note that some of these services require you to sign up first with them so they can protect their users from spammers — hence, the reason for having an account before you’re able to check your email.

Here is the compiled list of free email spam checker tools worth using to produce great campaign results.


1. GMass Inbox Placements

GMass Inbox Placements is a 100% free email testing tool that you can use to check your email inbox placement in Gmail, Outlook, Yahoo, iCloud, AOL, and other email clients. It will show you where your emails are being delivered. You can check whether it is going to the recipient’s inbox or spam folder.

GMass Inbox Placements is a great email deliverability and spam testing tool that help you reach more customer by improving email deliverability.


2. GlockApps

Finding email deliverability experts can sometimes be a challenge. If you’re serious about your email deliverability, then there’s no-one better to do the job than GlockApps’ team of experts. They have experience with all types of deliverability issues and troubleshoot any issue you have. You’ll get fast results and expert guidance on how to improve your deliverability as well as advice on where you can improve next.

GlockApps is an excellent tool for email deliverability. With GlockApps software, you can make sure your email marketing is efficient and effective. It’s easy to setup and run. Follow these instructions and take just 5 minutes of your time to check it out!


3. Folderly

Folderly is an all-in-one email deliverability platform to supercharge your email performance. It gives you a powerful interface for planning, tracking, and reporting on all aspects of email deliverability, so you can effortlessly send your emails with confidence.

Folderly helps you build, manage and optimize your email deliverability program to improve open rates and CTRs.


4. MailerCheck

MailerCheck is a fantastic email deliverability testing tool that offers complete email insights, inbox placements, spam word detection, blacklist checks, HTML validator, sender authentication, and more.

MailerCheck provides 200 credits for free. You can use these credits either to verify your email address or to test your email campaign. Boost email campaign ROI with MailerCheck email testing tools.


5. Mail-tester

Mail-tester is a free email spam score analyzer tool. You can easily identify your email spam score and issue in the email template. Just you need to send an email to [email protected] It will perform an SPF check, DKIM check, Sender-ID check, SpamAssassin check, and DomainKeys check to ensure that spam filters do not misidentify your email address.

If you are on a tight budget and do not want to spend money on email delivery tools, you can certainly use the Mail-tester tool for free.


6. Spam Check by Postmark

Spam Check is another free tool you can use to avoid spam filters and ensure email deliverability. Just copy the content of your email and paste it into Spam Check tool. It will analyze the spam score and give you a detailed report to improve your email delivery.


7. IsNotSpam

IsNotSpam is one of the best free spam checker tools. You can test your email content, sender reputation, sender authentication, and more. Send an email to [email protected] and get a detailed email spam report.


8. Mailmeteor

Mailmeteor is basically a mass emailing platform that works in Gmail. You can send personalized mail merge emails by using your Gmail account. Mailmeteor also offers a free spam analyzer tool to check the spam score of your email. It’s 100% free email spam testing tool you can use regularly for your email campaigns.


9. Spamanalyse

Spamanalyse is the number 1 email spam-checking tool. You can test your email by using Spamanalyse and it will give you a suggestion if your email needs any improvement. It’s a completely free spam testing tool you can use it for better campaign performance.


10. MailGenius

Use MailGenius and avoid emails going to spam. MailGenius is a free email testing tool you can use to test your inbox placement, IP & domain reputation, sender score, SPF records, blacklisting, email authentication, and more.

Simply send an email to [email protected] within 10-15 seconds you will get a complete overview of your email delivery status.



Enhance your email deliverability with a FREE email tester. is one of the best email spam checker tools that also includes heat map prediction. You can check all email deliverability factors like sender name, content, subject line, DNS, blacklisting, broken links, reverse DNS, SpamAssassin, etc. will rate your email messages based on their email deliverability algorithm. The higher your score, the more likely it is that your message will reach the customer’s inbox.


12. InboxAlly

InboxAlly is the ultimate email deliverability tool that effortlessly increases your open rate and engagement rate. Run an email spam test for free with InboxAlly and increase your email inbox placements.


13. MXToolbox

MXToolbox is another spam analyzer that uses spam assassin software to analyze your message and generate a spam score based on 711 different criteria. Try its 100% free.


14. Warmup Inbox

Warmup Inbox is the top class email deliverability tool that actively working on improving your email deliverability. It’s useful for those who already facing deliverability issues. Warmup Inbox interacts with thousands of inboxes and helps you to boost your sender reputation.

It’s just not only identifies the issue but continuously works on resolving the issue.


15. Litmus

Litmus is the most popular email testing tool that identifies issues in each element of an email marketing campaign. Test your email with Litmus and get rid of all email spam.

It’s not completely free but you can use their free trial to see any issue in your email campaign. Once you identify the issue, just fix the issue and send the campaign. This way you can improve your campaign response and performance.



These are the best free email spam checker tools you can use to test your email campaign. It will give you enough confidence to send bulk email marketing campaigns to your recipients. You should use these free email testing tools on regular basis to boost your email deliverability and campaign response.

I hope this article has helped you to understand the importance of email testing or spam testing and its benefits. Also available free option for email spam checking tools.