est Email Test Tools for 2023 [Free and Paid]

email test tools are no longer an option but a must for modern marketing teams. It sounds impossible to create -converting email campaigns which pass spam filters. To achieve this, you must test your messages in order to make sure that your subscribers have the best experience possible with your business.

We’ll look at 21 tools that can help you today:

• preview your email design
• power up your email deliverability
• Test your campaigns A/B
• verify your email lists
• Optimize your subject lines

Let’s take a look at the most useful paid and free tools for email testing.

Comparison Table : Best Email Testing Tools

Before we begin, here is a list of the best email test platforms that you can find, organized by category.

You can select from a variety of options as you will see in the list below. To choose the best, you should always take into consideration the following criteria.

• Price
• The following are some examples of
• Usability

Even though a free tool may sound appealing, particularly for businesses on a tight budget, paying for email testing solutions could actually save you time and money.

Let’s now see the winners in each category.

Email preview & Spam test tools

To avoid spam folders, you must first ensure that emails are displayed correctly within the inbox. To do this, you will need HTML validation and preview software to ensure everything looks good. Consider these five options:

1. Moosend: Design, Delivery and Content Spam Test

Pricing : Plans starting at $9/month with a 30-day free trial.

Best for: SMEs, eCommerce, SaaS, Publishers, Bloggers

Moosend offers a range of tools for email marketing, including the ability to automate, test and send email campaigns.

The platform offers delivery and design testing, so you can make sure your emails look great before they arrive in the mailbox. This feature is great for marketers using the HTML builder who want to test their campaign before sending it out to their testing addresses.

The platform also allows you to create spam filter reports so that you can see how your messages compare against popular spam filters such as Outlook, Gmail and Yahoo.

Best of Moosend Features

• Preview Email Functionality (Desktop and Mobile Devices)
• Content spam checker option
• 
  Email Analytics and Metrics
  
• A/B Testing Tool
• Integrate with email verification and testing tools

Moosend Price

Paid Plans Start at $9/month and include unlimited email campaigns, landing pages, forms, and email testing. Sign up for a trial (no credit cards required) to test out the tools.

2. Mailtrap – HTML/CSS Validation tool

Pricing: Paid Plans start at $14.99/month. Free Plan

Best for: Freelancers, SMBs, Enterprises

Mailtrap provides a variety of testing tools that will help you to analyze your campaign copy and discover your spam score. Validate your HTML and CSS.

Email marketers can use the software to determine how many people will see emails displayed correctly in popular email clients. Mailtrap also makes it simple to detect problems in your HTML code, and catches potential design and formatting issues before you lose engagement or delivery rates.

Finally, you can check the platform for possible rendering errors on desktop, mobile and tablet devices.

Best Mailtrap Features

• Validate HTML emails
• Email client support verification
• Audience Optimization
• Email preview for different devices
• Virtual inboxes shared by multiple users

Mailtrap Pricing

Mailtrap offers a free version that allows you to send up to 500 emails per month. Upgrade to a Paid Plan to increase this limit. The Individual plan starts at $14.99/month.

3. Email on Acid – Email Preview & Verification

Pricing: Paid Plans Start at $99/month with a 7-day Trial

Best for: Large businesses, Agencies, SaaS

Email On Acid allows you to test your email and find out what elements may cause it to be blocked by spam filters.

The platform offers a variety of tools to help you create the perfect test email, such as sharing, approvals and comments. Email on Acid offers a variety of content-based email testing options. It also allows you to check domain blocklists to increase the deliverability of your emails.

You can also use the engagement tracking features to keep track of your subscribers’ activities.

Best Email on Acid Features

• Image Validation
• Display of the Inbox
• Email Accessibility Options
• Test the pre-header text
• Team Management

Email about Acid Pricing

Sign up for a 7-day free trial to try out the platform. You can then upgrade to one of the four paid plans. These include the Basics for $99/month, Premium for $179/month, Professional at $599/month, or Enterprise (custom priced).

4. Litmus – Email Marketing Platform with All-Inclusive Features

Pricing: Paid Plans Start at $99/month with a 7-day Free Trial

Best for: Large Business, SaaS, Financial, Retail

Litmus is an all-in one email marketing platform that provides users with excellent test capabilities to check for elements that may hinder email performance.

You can use Litmus to see how your emails look on different devices and clients. You can also receive suggestions for improvements. The tool also offers automated quality assurance, which ensures that links, images and other assets are displayed perfectly. This email testing tool will also verify if the content you are sending is accessible to all users.

You can also run advanced spam testing to bypass common filters, and deliver your email to your intended audience.

The Best Litmus Test Features

• Email previews for various email clients and devices
• Analysis of QA
• Accessibility features
• Advanced Spam Testing
• Different integrations

Litmus Pricing

The paid plans of this email service provider start at $99/month with Basic. Upgrade to Plus for $199/month, or request a customized Enterprise plan.

5. Email Preview Services: Email Testing and Editing

Pricing: Paid Plans Start at $25/month with a 7-day Free Trial

Best for: Agencies, Professional services, SaaS

Email Preview Services (previously Previewmyemail) is another option you can consider to create compelling emails for your audience. The features are extensive, ranging from spam testing to design.

You can check the look of your campaign in different devices and applications to ensure a great experience for all. The tool also helps users to maximize their delivery rates by identifying spam and risky content.

Email Preview Services also has an easy-to-use API that allows you to integrate it with your existing email marketing software.

Best Email Preview Services

• Email design testing
• Deliverability Insights
• Email Content Analyzer
• Email campaign analytics
• API

Email Preview Services Pricing

There are four main price plans for this email testing tool. Standard starts at $25/month with limited checks. The most popular plan, Business, is $45/month. A $399/month option is available for Enterprises.

SMTP Server Test Tool

You need to use an SMTP Server test tool if you want to ensure that your email is sent correctly. Consider these great options:

6. SocketLabs SMTP Checking Software

Pricing: Paid Plans Start at $39.95/month with a 30-day Free Trial

Best for: Marketing, eCommerce and large businesses

Socketlabs offers a number of features that make it a good option for testing SMTP relay services. These include easy configuration tools, reporting tools, a unique IP address and much more.

You can integrate the tool into your apps, or use the Socketlabs Control Panel to send marketing emails and transactions.

The tool’s reporting features are great for improving email delivery. You can view detailed reports that show failed messages, deliverability problems, engagement and more.

The Best SocketLabs Features

• Deliverability Insights
• StreamScore delivery reporting
• Automatic bounce processing
• Dedicated IP Address
• Reporting API

Pricing for Socketlabs

The Basic Plan is available for free. After the 30-day trial period, pricing begins at $39.95/month. Upgrade to the Professional plan at $79.95/month, or speak to an expert about the High Volume Custom Plan.

7. MxToolBox is a mail server testing tool

Pricing: Paid Plans start at $129/month. Limited Free Plan

Best for: Agencies, SaaS, Enterprises

The Delivery Service from MxToolBox is equipped with a number of tools that will help you identify issues and enhance the security of your SMTP Server.

You can also keep track of DNS, MX records, blacklists and SMTP analysis. You only need to enter your domain name and IP address/hostname to get started.

MxToolBox’s super tool allows you to perform various tests including HTTP/HTTPS validation, SPF and XML record checking, ICMP Pinging, Trace Routing, and DNS Server Troubleshooting.

MxToolBox Best Features

• Mail server testing
• Real-time insights into delivery
• Blacklist monitoring
• Monitoring of Inbound and Outbound Mailflow
• Email Health check option

MxToolBox Pricing

MxToolBox has a free plan with limited features. To access the Premium Features you will need to upgrade to either the Delivery Centre plan, starting at $129/month, or the Deliver Centre Plus Plan at $399/month.

8. Wormly is a platform for monitoring uptime.

Pricing: Paid Plans Start at $44/month. Free Trial

Best for: Agencies, Marketers, Developers, Enterprises

Wormly’s Email Testing Tool focuses on monitoring uptime and metrics in order to minimize downtimes while increasing your revenue.

The tool will send you instant alerts via SMS, Slack and other means to ensure that you can act quickly. You will also have access to monitoring for all protocols, such as HTTPS, POP3, IMAP and FTP.

You only need your hostname or IP address, your email, and the TCP port to run an SMTP Test.

Wormly Features

• Test SSL Web Server
• Test SMTP servers with this tool
• Advanced metrics (Apache PHP-APC etc.
• Performance Trends
• Reporting uptime

Wormly Prices

Wormly offers a free 30-day trial that gives you access to HTTP POST, SSL certificates, and 5-second high definition monitoring. Monitoring and more. You can upgrade to a Paid Plan if you want to get more. The Startup plan costs $44/month. The Agency plan is $107/month. Devops is $221/month. Enterprise starts at $562/month.

Email Delivery Test Tools

You need to be aware of your deliverability to avoid being placed in the spam folder. We’ll look at a few tools that can help you achieve this:

9. GlockApps – Email Deliverability Tester

Pricing : Paid plans starting at $79/month. Limited free plan

Best for SMBSs, eCommerce and SaaS

GlockApps is next on the list. This tool will help you identify email issues and test ISPs. will then increase your open rate.

From DMARC Analytics to Uptime Monitoring and Bounce Tracking, the platform has a wide range of features that will help you get your emails into your subscribers’ inboxes.

GlockApps also includes a Domain Checker, which you can use to shield your domain against malicious use and protect your business from spoofing.

Features of the Best GlockApps

• Test your email inbox and get insights
• Bounce Analytics
• Sender Reputation Tests
• Domain check tool
• Email template editor

GlockApps Pricing

GlockApps offers a Personal Free Plan that includes 3 email spam test, 10,000 DMARC message, 10 uptime and reputation monitors, as well as a 2 week trial. pricing begins with the Basic Plan for $79/month, and the Business plan at $129/month. Custom Plans are also available.

10. Mail Tester – SPF & DKIM Testing Service

Pricing – Free of charge

Best for : Individuals and small businesses on a tight budget

Mail tester allows you to test the deliverability of your emails. It is free. The tool allows users to instantly check their email campaigns for any issues , and receive a score within seconds.

The tool can also be used to check your SPF and DKIM records (Sender policy Framework), test your IP address and identify spam-related content which will affect your email delivery.

Check out our spam email checker for more similar tools!

Best mail tester features

• SPF & DKIM Testing Option
• Verification of IP addresses
• Mail server testing
• Configuration reports
• SpamAssassin collaboration

Mail Tester Pricing

Mail Tester, as mentioned above is a free software that you can download by simply visiting their website.

11. Spam Check by Postmark Tool – Email Delivery Tool

Pricing – Free of charge

Best For:Bloggers and Marketers. SMBs.

Postmark, an SMTP-based email delivery service comes with a number of handy tools that can help you identify potential problems by using SpamAssassin.

You will receive free access to the spam score checker. The tool allows you to run tests easily by adding your email codes and using the JSON API for connecting spam score processing to your applications.

You will need to purchase one of Postmark’s paid plans if you wish to use the platform as an SMTP Relay Service.

Best Spam check Features

• Lightweight JSON API
• SpamAssassin score
• Spam score processing
• Simple to use interface

Spam Check Pricing

Postmark’s Spam Check is free. You can use it in conjunction with the other tools listed here if you want additional features.

Email Verification Tools

Verifying your emails lists allows you to maintain good list health and remove any questionable email addresses which could lower your sender scores. Here are some awesome tools to help you:

12. ZeroBounce Email Validation Service

Pricing: Paid Plans Start at $15/month. Limited Free Plan

Best for: Individuals, SMBs, SaaS, Enterprises

zeroBounce can be used to verify that your emails reach their recipients. This service can be used to clean your email lists using the bulk mail verifier.

You can also connect ZeroBounce’s email validation API to your signup forms and perform real-time verifications that will save valuable time.

The email testing tool has additional features that allow it to test email deliverability and detect errors in mail servers.

Features of ZeroBounce

• Email Verification Tester
• Contacts with high quality scores
• Test for email deliverability
• Blacklist monitoring
• Email Validation API

Pricing

ZeroBounce offers a limited free plan. You can upgrade to a premium plan for $15/month, which includes 2,000 emails. Enterprise plans are available for campaigns with more than 2 million emails.

13. MailFloss is a tool that verifies email addresses.

Pricing: Paid Plans Start at $25/month with a 7-day Free Trial

Best for SMBs, marketers, large businesses

Mailfloss allows you to “floss”, or remove, harmful and fake email addresses from your email list. The service allows you to connect with your preferred email platform in order to remove invalid contactand maintain good sender reputation.

It is perfect for beginners as it does not require any coding skills. Mailfloss has a real-time API that is useful for those who are tech-savvy.

You can upload spreadsheets manually or you can add email addresses manually for more traditional users.

Best Mailfloss Features

• Cleaning your home every day?
• Real-time API
• Auto-removal of invalid addresses
• Stats and analytics in detail
• Integration with popular ESPs

Mailfloss Price

Mailfloss does not offer a free trial, but it offers a seven-day plan that you can test out. After the trial expires, you will need to upgrade your plan to one of three plans: the Lite for $25/month or the Business for $57/month. The Pro is $200/month.

14. EmailListVerify – Email Verification Software

Pricing: Paid Plans Start at $139. Limited Free Plan

Best for: Agencies, SaaS, Enterprises

EmailListVerify can help you validate your email addresses. You only need to upload your contact list (accepted formats are CSV, XLS and TXTX). In just a few moments, you’ll be able to download a list of clean contacts that will not affect your email deliverability.

The platform can also perform validation of your SMTP domain and server as well as spam checks and MX records tests in order to help you increase your ROI.

Features of Best EmailListVerify

• Email health checker
• Blacklist tests
• Lookup MX
• Email Address Extractor
• SMTP server validation

EmailListVerify Pricing

EmailListVerify offers 100 free email confirmations with the free plan. You can then choose to pay as you go or subscribe to for a monthly fee. The subscription starts at $139/month and goes up from there.

Email Account Monitors

When you are just starting out with an email account, two things will need your attention: the technical setup and the sender’s reputation. Here are some tools to help you with both.

15. Email Reply Warm-Up Tool

Pricing: $60 per user per month

Best for: Sales reps, SaaS, Agencies, SMBs

Email warm-up tool by Reply provides visibility and control over the health of your email account, from technical setup to inbox positioning and more. This is all done within a fully-featured sales engagement platform. You can first ensure that your email account is properly configured by checking and verifying the DNS records for your account, such as SPF, DKIM DMARC etc.

The tool can be used to improve or restore your sender’s reputation. The platform will, in a nutshell, send a certain number of emails (to trusted peers) and interact with them automatically on your behalf.

Your sender reputation will also improve as the limit increases. The best part of all is that you can track your progress and get a real-time insight into how well your account performs.

Best Response Features

• DNS issue detection
• AI-generated templates
• Multi-service profiles
• Peer-to-peer sending
• Ramp-Up mode

Reply pricing

The Warm-Up tool starts at $60/month for each user. The pricing is transparent and based on usage. There are no upfront payments or extra charges.

16. Folderly – Email Warmup and Delivery Platform

Pricing : Paid plans starting at $200/month

Best for: Marketers, SMBs, Enterprises

Folderly provides a comprehensive suite of tools for testing, monitoring, and improving your email deliverability. It’s a platform that allows you to identify and correct any problems that may arise with your email or domain.

Folderly also offers an automated warm-up email service, similar to Reply’s tool. There are also some useful add-ons such as the SPF Generator, Email Placement Test, and Email Placement Test.

You can also ask for professional assistance from their experts in-house, such as a deliverability audit or even a template writing service.

Best Folderly Feature

• Custom API Integration
• Email placement test
• Domain Status Monitoring
• Email Content Analysis
• Dashboard detail

Folderly pricing

Folderly has two main price plans. The first is for cold outreach and costs $200/month. Pricing for add-ons, professional service packages and enterprise plans can be obtained upon request.

A/B testing Software

It is important to perform regular A/B testing on your email campaigns if you want to scale your email marketing. Although most email platforms, such as Moosend or Mailchimp, offer A/B tests, here are a couple of additional tools that can help:

17. Multivariate Testing Platform – VWO

Pricing : Available plans on request, 30-day free trial.

Best for SMEs, Engineers, and Marketers

VWO has become one of the leading email testing tools on the market for split-testing and multivariate. You can now A/B-test any part of your email campaign to measure its performance.

The point-and-click editor allows marketers to easily launch new tests in order to increase email open rates, and discover the winning campaign versions. Comparing this software to other tools, it allows you to run multivariate testing.

You can experiment with different combinations to see what works best!

The Best VWO Features

• Email split test options
• Visual editor with point-and-click
• Ready-to use widgets
• AI copy generator
• Tests based on segmentation

VWO Pricing

VWO offers a free 30-day trial. Then, you can choose from their three plans: Growth, Pro or Enterprise. You can contact their sales team to check the prices.

18. Optimizely Experimentation Platform

Pricing : Available paid plans. Contact sales for more information. Limited free plan.

Best for: SMBs, Non-profits, Online stores

Optimizely allows you to run simultaneous experiments and enhance your marketing plan.

The platform has a set of advanced tools that allows you to experiment with different messages to increase engagement and optimize them.

Optimizely also allows you to test your website using their visual editor. You can use this method to test different UI variations in order to personalize the messages on your website and convert more visitors.

Features that are Best Optimized

• 
  Digital Experience Tool
  
• Web experimentation
• No code visual editor
• Multivariate testing
• Rollout Tool

Optimizely pricing

Optimizely provides a Free Plan where you can start with experimentation and feature tagging. You can upgrade to one paid plan to access Full Stack and Web tools by requesting a quotation.

19. Mailchimp – Email A/B Testing & Automation Software

Pricing : Plans starting at $20/month. Limited free plan.

Best for Publishers, eCommerce

Mailchimp allows you to A/B-test your email campaign, before it reaches your recipients’ inbox.

The platform also offers advanced tools for testing various campaign elements, up to 3, such as your content, subject line, design, format, and more. Multivariate is also available, but only for Premium users. It allows you to test up 9 variations.

Are you looking for a cheaper Mailchimp alternative? Why not try Moosend’s email service or A/B testing tools?

Try it!

Mailchimp’s Best Features

• Multivariate Testing Option
• Tests on cross-device devices
• Email campaign editor
• Landing Page Builder
• Behavioral tagging

Mailchimp Pricing

You can get started with the tool’s free plan, which is limited to 2,000 contacts per month. pricing begins at $13/month, which is 6,000 messages.

Email Subject line Testers

A good subject line makes a difference in the open rate. You can use these tools to ensure that your subject lines are not the reason your campaign ends up in the spam folder.

20. Subject Line Testing by Refine by Moosend

Pricing : Free to Use

Best For: Bloggers and Freelancers. SMBs. eCommerce.

Refine, Moosend’s free subject-line tester tool that you can use right away. You can access the tool by going to it, entering your subject line and selecting your industry, subscribers and click on the “Predict now” button.

The AI powered software will compare your subject line to the industry standard and provide you with suggestions for improving its performance.

Refine can help you optimize your subject lines by suggesting important changes such as adding emojis or personalization.

The Best Features

• Algorithms that are constantly improving
• Easy to use
• Customized to every industry
• Options for optimization

Refine Pricing

Everyone can use the tool. You can use the powerful A/B testing features to improve your results.

21. Send Check

Pricing – Free of charge

Best for Freelancers and Small Businesses

Send It provides a simple but effective way to identify problems with your subject lines. Anyone can access the software as long as they have an email.

The tool analyzes your subject line automatically and provides you with useful information, such as the performance score, readability, level of reading, and length.

You’ll also get helpful suggestions on how to improve the subject line of your email, such as personalization and punctuation.

Send Check It Features

• Subject line scoring
• Spam word detection
• Analysis of marketing emails based on the sentiment they generate
• Big subject line database

Check it Pricing

You can also use Send Check It to test the subject line of your email. You only need to enter your name and your email address in order to get the results.

Takeaways

Every business, no matter how big or small, should use email testing tools. Testing is an important part of any marketing strategy. Don’t forget that the best platforms are available and should be added to your toolbox.

Why not try out Moosend’s features like design and previews, spam checks, A/B testing, and subject line testers? To try out these features, you only need to create a free account with Moosend!

The post Best Email Testing Tool For 2023 [Free and Paid] first appeared on Email Automation Platform for Thriving Business.

Author: Marilia Dimitriou