
MailTester.AI
MailTester.AI is an AI-powered email testing tool that instantly analyzes newsletters and campaigns by providing comprehensive deliverability checks, spam score analysis, and AI-generated content optimization suggestions to improve email performance.
https://mailtester.ai/?ref=producthunt

Product Information
Updated:Oct 11, 2025
What is MailTester.AI
MailTester.AI is a specialized email deliverability platform built by a designer and full-stack developer duo to simplify the process of checking newsletter impact. Unlike traditional email testing tools that focus solely on technical aspects, MailTester.AI combines technical analysis with AI-powered content optimization. The platform helps marketers, businesses, and content creators ensure their emails reach recipients' primary inboxes rather than spam folders by analyzing multiple factors including SPF/DKIM/DMARC authentication, content quality, and potential spam triggers.
Key Features of MailTester.AI
MailTester.AI is an AI-powered email deliverability testing tool that provides instant analysis of email content, technical setup, and spam scoring. Users can simply forward any email to get comprehensive reports including AI-generated content suggestions, SPF/DKIM/DMARC validation, spam score analysis, and actionable recommendations to improve email deliverability. The platform combines technical checks with AI-powered content optimization to help marketers achieve better inbox placement rates.
AI Content Analysis: Uses artificial intelligence to analyze email content, detect spam triggers, optimize subject lines, and provide content rewriting suggestions for better deliverability
Technical Authentication Check: Performs comprehensive validation of SPF, DKIM, DMARC records and provides detailed technical recommendations for fixing authentication issues
SpamAssassin Integration: Runs emails through industry-standard spam filters to generate detailed spam scores and specific rule-based improvements
Quick Testing Process: Delivers complete analysis within 30 seconds by simply forwarding any email to a dedicated testing address
Use Cases of MailTester.AI
Newsletter Optimization: Help newsletter creators and publishers ensure their content reaches subscribers' primary inbox instead of spam folders
Marketing Campaign Testing: Enable marketing teams to test and optimize email campaigns before sending to large subscriber lists
Technical Compliance: Assist IT teams in validating proper email authentication setup and maintaining technical standards for email sending
Content Quality Assurance: Help content writers and editors identify and fix potentially problematic content before distribution
Pros
Simple and quick testing process requiring only email forwarding
Comprehensive analysis combining both technical and content aspects
AI-powered suggestions for content improvement
Instant results delivered within 30 seconds
Cons
Limited to testing one email at a time
Requires forwarding emails which may not be suitable for sensitive content
How to Use MailTester.AI
Visit MailTester.AI: Go to mailtester.ai in your web browser
Get your unique test email address: Copy the provided test email address (e.g., [email protected]) from the website
Forward your email: Forward any email you want to test (from Mailchimp, Substack, or any other platform) to the test email address you copied
Wait for analysis: The system will automatically analyze your email when it receives it (takes about 30 seconds)
View your results: Click to view your comprehensive analysis report which includes: spam score, AI predictions, content suggestions, and technical analysis
Review detailed report sections: Check the authentication analysis, content spam detection, technical headers review, SpamAssassin testing, deliverability score, and actionable recommendations
Implement improvements: Follow the step-by-step recommendations provided to fix any issues and improve your email deliverability
MailTester.AI FAQs
MailTester.AI is an AI-powered email analysis tool that instantly analyzes newsletters, campaigns, and community emails to provide actionable insights on deliverability, spam scores, and content optimization. It works by having users forward any email to a unique test address for comprehensive analysis.
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