Don't Send Another Email Until You've Tried These 7 Testing Tools

published on 09 August 2024

Gaurav Mandal

Tools you’ll find in this list will help you:

  • Test HTML validation,
  • Preview your email design and layout,
  • Check your sender reputation,
  • Improve your deliverability, and
  • Test your email subject lines.
  • Generation of Email

Resend.com

Resend is a new devtool that simplifies email testing for developers. It allows you to test your emails across different email clients and devices and provides actionable insights to help you optimize your emails for better deliverability and engagement. The idea is for you to send messages with easy-to-use APIs/SDKs without having to worry about emails going to the spam folder.

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Pricing - It has not yet been released.

HTML email check

HTML Email Check is a free tool for validating the markup (HTML, XHTML, CSS) of your emails and newsletters. This handy tool also checks images, validates links, and checks for accessibility.

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These tools will test for red flags that, when added up, might make your email more likely to end up in a subscriber’s spam folder. The best tools examine not only the email you’re sending, but the reputation of where it’s being sent from.

Pricing

This pricing plan offers three tiers: Core for $19.95/month, Business for $29.95/month, and Enterprise for $49.95/month, which are billed as a yearly payment. All three tiers include HTML, CSS, link, image, and font validation features. The higher tiers also include advanced features like spam validation, email sending, and visual tester. The Enterprise tier includes expert-level features like dark mode validation, accessibility validation, mobile validation, developer checklist, visual tester inspector, and 24/7 priority support.

SendForensics

SendForensics is an email deliverability suite that thoroughly assesses the deliverability of your emails by examining your sender score, the content of your email, loss to spam filters, and other criteria.

This tool provides real-time scoring for live campaigns and compares your deliverability performance with industry benchmarks. You can also set deliverability alerts to monitor your email performance and safeguard your reputation.

Subscriber verification tools

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When you send an email to an invalid address, you can suffer some real consequences. Those “bounces” (a fancy word for emails that get sent back to you unopened — a kind of digital return-to-sender) can harm your reputation and make your bulk emails look more like spam.

Email verification tools are used primarily to ensure that doesn’t happen, so you know whether an email address on your list is valid before you send out your newsletter. To ensure the safety of your subscribers’ data, we recommend using a paid service to verify your email list.

Pricing

The basic plan is $39 per month and includes standard features, two sending domains, two users, and 100,000 DMARC records per month. The Company plan is $63 per month and is suitable for businesses investing in email marketing, offering five sending domains, five users, and 1,000,000 DMARC records per month. The Agency plan, priced at $159 per month, is designed for email deliverability agencies or large teams, providing 15 sending domains, ten users, and 1,000,000 DMARC records per month.

Pabbly

Pabbly Email Verification helps in improving the email deliverability by removing all the unwanted email addresses from your list. With its easy to use interface, you can verify a long list of emails with just a few clicks..

Along with removing all the duplicate email addresses, it also eliminates emails with invalid syntax or inactive domain to get you a clean mailing list. Further, its efficient anti-greylisting technology saves your list from spammers.

Pricing

The Standard plan is $5 for 1,000 emails, the Pro plan is $25 for 10,000 emails, and the Ultimate plan is the most popular and costs $37 for 15,000 emails. All plans include features such as verifying bulk and single emails, detailed reports and statistics, email credit dashboard, and full support. The credits never expire, and the plan also includes email verification log, complaints removed, and detailed status codes to improve email deliverability.

Litmus

Litmus is an email testing tool that allows businesses to preview how their emails will appear in over 90 email clients, including web-based and mobile clients. It provides detailed analytics and reports to track the success of email campaigns, including open rates and click-through rates. Litmus offers real-time email testing, allowing users to see how their emails will look on different devices and email clients as they create them. The tool helps identify rendering issues in specific email clients and optimize emails accordingly. It is a powerful tool for email marketing and is highly recommended for businesses serious about their email campaigns.

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Pricing

Litmus offers three pricing plans: Basic, Plus, and Enterprise. The Basic plan costs $99 per month and includes 1 full user, unlimited read-only users, and 1,000 email previews per month. It allows users to quickly create quality, on-brand emails, standardize quality assurance using automated pre-send checks, and save time with productivity integrations. The Plus plan costs $199 per month and includes everything in Basic, along with additional features like code editor integrations, pre-send spam testing, and ESP integrations. The Enterprise plan is custom-tailored to the user's needs and includes all Plus features, as well as additional features like advanced security settings and user permissions.

Flowrite

Generate ready-to-send emails with short or no instructions.

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Flowrite is an AI-powered email writer that saves you hours per month when it comes to daily messaging.

In simple terms, you choose a message template (e.g. follow-up email), add short instructions, and Flowrite uses the professional identity information you provide (like company name and your role) to generate highly personalized messages.

Key features:

  • Works in your inbox with 20+ integrations to apps like LinkedIn, Intercom and more
  • Smart email templates that have been trained to handle the most common daily messages
  • Automatically gives reply suggestions that allow for a 1-click reply experience

Pricing

Free trial, paid plans range from $5-30/month based on number of messages you send

SmartWriter.ai

AI email writing software is designed for cold emailing.

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SmartWriter uses publicly available prospect data from news stories, LinkedIn profiles, case studies, and more, to create unique sales emails for everyone you're reaching out to.

Rather than offering a wide variety of copywriting templates, SmartWriter only focuses on email copy designed to be used in your cold outreach.

Their templates include personalized icebreakers (opening lines), entire cold emails, LinkedIn outreach messages, and backlink outreach templates.

Pricing:

$59/month for 1500 outreach credits

Key features:

  • Create custom opening lines, cold emails, LinkedIn messages, and backlink request emails
  • Searches for up-to-date information on your prospects
  • Verify your emails before sending to improve deliverability

Here's a summary of the tools:

Tool: Resend Email 
Features: Testing across different email clients and devices, actionable insights for optimization 

Pricing: Not yet released

Tool: HTML Email Check
Features: Markup validation, image validation, link validation, accessibility validation  

Pricing: Core: $19.95/month, Business: $29.95/month, Enterprise: $49.95/month

Tool: SendForensics
Features: Email deliverability suite, sender score examination, real-time scoring, deliverability alerts  

Pricing: Basic: $39/month, Company: $63/month, Agency: $159/month

Tool: Pabbly Email Verification
Features: Email list cleaning, removal of unwanted email addresses, elimination of emails with invalid syntax or inactive domain.
 

Pricing: Tier 1: $49/month, Tier 2: $99/month, Tier 3: $199/month

Tool: Litmus
Features: Email preview across 90 email clients, detailed analytics and reports, real-time email testing, rendering issue identification

Pricing: Basic: $99/month, Plus: $199/month, Enterprise: Custom-tailored

Tool: Flowrite
Features: Flowrite is an AI-powered email writer that saves you hours per month when it comes to daily messaging.

Pricing: Free trial, paid plans range from $5-30/month based on number of messages you send

Tool: Smartwriter.ai
Features: Create custom opening lines, cold emails, LinkedIn messages, and backlink request emails

Pricing: $59/month for 1500 outreach credits

Conclusion

Improve your email marketing strategy and help your business or community group grow in the right ways by utilizing the tools. AI copywriting tools still have room to improve. Despite that, they can still be a valuable part of your workflow.

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