Best Email Testing Tools (free & paid) You Should Try

Whether you are an avid blogger, marketer, a software QA/developer or a project manager, the importance of a concise, well explained, error-free email can never be undermined. We all agree that communication is the key, hence before hitting that send button, we ought to test our emails too.

What is email testing? How do you test an email? Why use an email Testing tool?

With the large-scale digitization, automated tools that send out campaign mailers, automatic replies and so on, the need of testing an email has faded out. However, checking a few pointers as follows goes a long way, 

• Check the email body, for instance, to preview how the email appears when it will be downloaded by different receivers.
• Checking the emails when received by a user using mobile handsets.
• If you intend to send images inline or attached to your mail, it is good to check how the images appear when received.
• Subject Lines are the face of the email, hence making them error-free should be of prime importance.
• Not all emails will be required to be sent uniformly across all the receivers, hence email segmentation should be checked well in advance.
• The usually ignored domains should be checked if the correct DKIM and SPF (Domain Keys Identified Mail and Sender Policy Framework) records are set up. If these are not validated by the incoming mail server, then there is a high chance of landing in spam.

Thankfully, to make our lives easier, we have a couple of email testing tools. A short introduction to each of those is presented ahead in the article.

Comparison Of Top Email Testing Tools

Best Email Test Tools

Category #1. HTML Validation and Email Previewing Tools

Let’s see some HTML validation and email preview testing tools

#1. Litmus

Best for Marketing, online campaigning

Litmus proudly claims that it is a package that your team would need when focusing to create emails for marketing. It provides a power-packed set of tools of its own to enable services like pre-send testing, post-delivery data and statistics of the insights to name a few. All that is required from your end is to connect to your ESP (Email Service Provider).

Free Trial: 7 days.

Pricing:

It has three plans – Litmus Basic, Litmus Plus, and Litmus Enterprise.

• Monthly Plan: Litmus Basic for 1 user costs $99/month, Litmus Plus 5 user costs $199/month, and Litmus Enterprise (custom pricing).
• Annual Plan: Litmus Basic for 1 user costs $63/month, Litmus Plus 5 user costs $127/month, and Litmus Enterprise (custom pricing).

#2. Email on Acid

Best for Marketer, online campaign

Email on acid is one of the best email preview service that broadly provides service in three ways, first, it checks your content, second it deliverability and lastly, it provides previews. Along with these, enterprise solutions, white label preview, white-label analytics are a few more solutions that this tool comes with.

Free Trial: 7 days.

Pricing:

It has four plans – The Basics, Premium, Professional, and Enterprise.

• Monthly Plan: The Basics costs $86/month, Premium costs $132/month, Professional costs $499/month, and Enterprise (custom pricing).
• Annual Plan: The Basics costs $73/month, Premium costs $112/month, Professional costs $424/month, and Enterprise (custom pricing).

#3. Inbox Inspector

Best for Entrepreneur, Online Marketer, Marketing Manager, Large Companies

Inbox inspector comes with a personalized set of tools that help a variety of users. This tool works wonders for people who have to deal with communications at work as it has impressive features such as email marketing, sales and lead magnet funnel, marketing automation, webinars, signup forms along website building assistance.

Free Trial: Available upto 500 contacts

Pricing:

It has four plans – Free, Basic, Plus, and Professional.

Monthly Plan: Free costs $0/month, Basic costs $15/month, Plus costs $49/month, and Professional costs $99/month.

Yearly Plan: Free costs $0/month, Basic costs $12.3/month, Plus costs $40.18/month, and Professional costs $81.18/month.

Two Yearly Plan: Free costs $0/month, Basic costs $10.5/month, Plus costs $34.3/month, and Professional costs $69.3/month.

#4. Putsmail

Best for QAs, Marketers, Managers

Putsmail checks your HTML email before you send them with the basic requirement of signing in to the Litmus Putsmail account.

Pricing: Free

#5. Mailtrap

Best for Developers, QAs, Marketers and Managers

Mailtrap stands out of the crowd since it is of use to a wide range of users. Compatible with any application or framework that supports SMTP Mailtrap provides a variety of services like maintaining all test data organized in one place, sharing test emails with a team, testing email sending service etc.

Free Trial: Available

Pricing:

It has five plans – Individual, Team, Business, Premium, Enterprise.

Individual costs $9.99/month, Team costs $24.99/month, Business costs $49.99/month, Premium costs $99.99/month and Enterprise costs $299/month.

#6. Preview My Email

Best for Marketers, Designer, Developers

Email design testing, White Label API, Email analytics are a few of the services provided by this tool with additional features like capturing screenshots etc.

Free Trial: 7 day trial

Pricing:

It has four plans – Standard, Business, Professional, Enterprise.

Monthly Plan: Standard costs $25/month, Business costs $45/month, Professional costs $160/month, and Enterprise costs $399/month.

Annual Plan: Standard costs $240/year, Business costs $432/year, Professional costs $1536/year, and Enterprise costs $3830/year.

#7. HTML Email Check

Best for Software professionals, developers, managers.

HTML email check tool vouches for the promised improvement in the email recipient’s experience and optimizes for all popular platforms. Services ranging from HTML validation, CCS validation, Font validation, image validation, link, mobile, accessibility validation to developer’s checklist, all can be found at your disposal when using the HTML Email Check tool.

Pricing:

It has three plans – Pro Monthly, Pro Annually, Pro Quarterly.

• Pro Monthly Plan: $14.95/month
• Pro Annually Plan: $149.95/ 12 months
• Pro Monthly Plan: $39.95/ 3 months

#8. Accessible Email

Best for Marketers, online campaigning

With the main focus on the accessibility of email marketing, this tool is of great use when you want to improve your HTML code and analyse sent campaigns with several other features.

Category #2. Email Sender Reputation Testing Tools

Let’s see some sender reputation testing tools

#1. Mail-Tester

Best for Marketers, Bloggers, Software professionals

Mail tester claims to make your email 99% accurate and you can start for free. You can try a single email verification or multiple, Mail tester is easily integrated with a number of tools, contains a powerful API for a reliable and automated email collection process.

Free Trial: Available

Pricing:

It has three plans – Pay as you go, Monthly, and Yearly.

Pay as you go Plan: Upto 5000 emails – $19 ($0.0038 / email), upto 1000 emails – $29 ($0.0029 / email), and till 10,000,000 emails – $2999 ($0.0002 / email)

Monthly Plan: 100 emails per day for $19, 1000 emails per day for $39, 5000 emails per day for $79, 10000 emails per day for $139.

Annual Plan: 100 emails per day for $190, 1000 emails per day for $390, 5000 emails per day for $790, 10000 emails per day for $1390.

#2. Postmark

Best for Businesses, companies

If you are looking for speedy and assured delivery of your email to your client, then Postmark is the one that will help. It comes with a detailed tracking mechanism and a responsive support team.

Free Trial: Available

Pricing:

$10 per month upto 10,000 emails, $50 per month upto 50,000 emails, $100 per month upto 1250,000 emails, $200 per month upto 300,000 emails, $400 per month upto 700,000 emails, $700 per month upto 1,500,000 emails, $900 per month upto 3,000,000 emails, $1200 per month upto 5,000,000 emails

#3. SenderScore

Best for Online campaigning, marketers, advertisement agencies

As the name suggests, this tool gives you a fair idea of how your email is performing on a scale of 0 to 100. This tool also lets you know if you are on any industry blacklist.

Category #3. Email Deliverability Tools

Let’s see some email deliverability testing tools

#1. SendForensics

Best for Email marketers, ESPs, agencies

A global name in ensuring email security and email delivery, SendForensic has been a renowned tool amongst the big MNCs as well as the mid-range organizations.

Free Trial: Available

Pricing: It has four plans – Free, Brand, Company, and Agency

• Monthly Billing – Free plan for $0, Brand plan for $49, Company plan for $79, and Agency plan for $199
• Semi-Annual Billing – Free plan for $0, Brand plan for $43, Company plan for $70, and Agency plan for $175
• Annual Billing – Free plan for $0, Brand plan for $39, Company plan for $63, and Agency plan for $159

#2. GlockApps

Best for Creative directors, Marketing team, Agencies

GlockApps tests your email with three spam tests providing deliverability services and email consulting. It has a support channel, hence you can rely on it in case of any issues faced.

Free Trial: Available

Pricing: It has four plans – Free, Basic, Business, and Custom

• Monthly Billing – Free plan for $0, Basic plan for $79, Business plan for $129, and Custom plan 1000 spam tests for $199
• Annual Billing – Free plan for $0, Basic plan for $59, Business plan for $99, and Custom plan 1000 spam tests for $199

Category #4. Subscriber Verification Tools

Let’s see some subscriber verification testing tools

#1. Clearout.io

Best for Online advertisement agencies, marketers, product-based companies.

Clearout.io provides solutions like email verifier, email finder and helps in validating phone numbers from over 20 + countries in bulk. It also helps in validating emails right on your spreadsheets bringing in ideal prospects.

Free Trial: Available

Pricing:

It has three plans – Pay as you go, Monthly, and Yearly.

Pay as you go Plan: 3000 credits for $21, 10000 credits for $58, 100,000 credits for $350, 250,000 credits for $625, 500,000 credits for $850, 1 million credits for $1100.

Monthly Plan: 5000 credits for $31.5, 10000 credits for $52.2, 50000 credits for $261, 100000 credits for $315, 250000 credits for $562.5, 500000 credits for $765, 1000000 credits for $990, 5000000 credits for 4050.

Yearly Plan: 5000 credits for $23.2, 10000 credits for $28, 50000 credits for $68, 100000 credits for $88, 250000 credits for $220, 500000 credits for $440, 1000000 credits for $880, 5000000 credits for 4400.

#2. NeverBounce

Best for Enterprises, Startups, nonprofit organizations

With more than 1 lakhs users, Never bounce for sure has gained a lot of popularity within the email testing tools. It cleans, verifies, and automatically syncs the list cleaning.

Free Trial: Available

Pricing:

It has three plans – Pay as you go, Monthly, and Yearly.

• Pay as you go Plan: Upto 10000 emails for $0.008 per email, upto 1000000 emails for $0.003 price per email.
• Monthly – Upto 1000 emails for $10, upto 10000 emails for $49 and so on.
• Yearly – Upto 1000 emails for $8, upto 10000 emails for $39.20 and so on.

#3. Pabbly

Best for Marketers, startups, agencies.

Pabbly as a tool has a proven track record of highest accuracy being provided with email verifications are taken under consideration. However, they positively emphasise the slow speed of work but guarantee accuracy at the same time. 

They provide email marketing, verification, subscription billing, form building software and can create automated workflows.

Free Trial: Available

Pricing: It has three plans – Monthly, 12 months, 24 months, and 36 months plan.

• Monthly – Starter with upto 50 customers for $19, Rookie with upto 1000 customers $37, Pro with upto 1500 customers for $57, Advance with upto 2500 customers for $79
• 12 months – Starter with upto 50 customers for $13, Rookie with upto 1000 customers $27, Pro with upto 1500 customers for $41, Advance with upto 2500 customers for $55
• 24 months – Starter with upto 50 customers for $11, Rookie with upto 1000 customers $21, Pro with upto 1500 customers for $33, Advance with upto 2500 customers for $47
• 36 months – Starter with upto 50 customers for $9, Rookie with upto 1000 customers $19, Pro with upto 1500 customers for $29, Advance with upto 2500 customers for $41

#4. Email Checker

Best for Anyone who needs to make sure the email address of a recipient is correct.

A humble, easy to use tool with a simple feature of checking if the email is address is correct or not.

Pricing: It’s a free tool.

Category #5. Subject Line Testing Tools

Let’s see some subject line testing tools

#1. CoSchedule’s Headline Analyzer

Best for Marketers, agencies.

CoSchedule’s Headline Analyzer is a very popular tool amongst many when it comes to writing the to the point subject line for an email. It works amazingly well using its algorithm to capitalize on the subject line, optimizing the character and word count, and full-fledged testing.

Free: Forever free

Pricing: Pro costs $29 per user per month

#2. Email Subject Line Grader

Best for Anyone who is keen to write an email with an eye-catching subject line.

Email Subject Line Grader is yet another simple to use tool that helps you test your email subject line without much effort. It gives your results in seconds, notifying how well your subject line is written, what is the scope of improvements in terms of word counts, character counts and word mixing and balance.

Pricing: It’s a free tool.

#3. Zurb TestSubject

Best for Marketers, Agencies, non-profit organizations and general office use.

Would you like to see how your email subject line appears on the most popular mobile devices?  If yes, the Zurb testsubject is your destination. Since mobile email apps generally truncate the subject lines resulting in undesired outcomes, it is wise to test your email subject lines and sender names when sent to users, who might open it on mobile email apps.

Pricing: It’s a free tool.

#4. Send Check It

Best for Marketers, Agencies, advertisement companies

Send check it tool helps you to stand out of the crowd by not only checking and analyzing your subject line but also by comparing it to tens of thousands of other emails from marketers. 

Pricing: It’s a free tool.

Category #6. Contact Information Search Engine

#1. ContactOut

Best for Recruitment, Sales and Marketing, Link Building, Lead Generation.

Contactout is an essential tool for anyone looking to generate leads and grow their business. It is designed to help users find email addresses and phone numbers for prospective clients and candidates and have personal emails for 75% of people in the western world. With its easy-to-use chrome extension, you can find email addresses on LinkedIn with just a few clicks.

Features:

• Chrome Extension
• CRM and ATS Integration
• Search Portal
• Data Enrichment
• Email Finder and Verifier

Pricing:

• Free: $0 per month
• Personal: $29 per month
• Professional: $99 per month
• Recruiter: $199 per month
• Team (Custom pricing)

FAQ’s Email Testing Tools

Conclusion

Choosing the most appropriate email testing tool may seem to be a daunting task, however, it is imperative to do so, since a lot is at stake even in one single email. A well-tested email can lead to a huge business opportunity whereas a poorly written email can degrade the brand name.

Hence wisely consider your business needs and go for the most appropriate email testing as listed above!