MailTester.AI

MailTester.AI is a web-based tool that analyzes email deliverability. You forward a marketing email to a unique address, and it provides a comprehensive report. The analysis checks technical aspects like SPF, DKIM, and DMARC records, but its main focus is using AI to scan the email's content for words and phrases that trigger spam filters. It then suggests specific rewrites to improve clarity and inbox placement rates.

The tool stands out by combining standard technical checks with generative AI. It doesn't just flag problems; it offers concrete solutions. The AI rewrites subject lines and body copy, turning spammy-sounding text into more professional and engaging content. It provides a clear spam score prediction and a detailed breakdown of what's working and what needs improvement.

This tool is most useful for marketers and businesses that send newsletters or promotional emails. It helps them avoid the spam folder, which directly impacts open rates and revenue. The process is simple: forward an email, get an instant report, and apply the suggested fixes to ensure your messages reach the inbox.