MailTester.AI
Analyzes email deliverability by forwarding a test email to a one-time address, then opening it in real Gmail, Outlook, and Yahoo to see where it lands, providing a score and three quick fixes.
Launch screenshots from Product Hunt, Oct 2025
MailTester.ai is a deliverability testing tool that analyzes whether emails will land in the inbox, promotions tab, or spam folder. It solves the problem of poor email deliverability for newsletter senders. The product is aimed at marketers, IT professionals, and B2B users, particularly those using platforms like Mailchimp, Substack, and Beehiiv. It is positioned as a simple, fast solution that provides instant SPF, DKIM, DMARC analysis and spam score, with a free tier and AI-powered deep dives.
Key features
- Instant SPF, DKIM, DMARC analysis
- Spam score and verdict
- Inbox placement prediction (Primary, Promotions, Spam)
- AI deep-dive with subject/body/CTA rewrites
- One-time test address
- Real Gmail, Outlook, Yahoo testing
- Free unlimited scoring
- GDPR compliant
- No social media activity within the last 30 days
GTM channels
- Newsletter
- API
ICP
- Marketing teams
- IT teams
- Freelancers solopreneurs