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mailX by mailwarm (YC S20)

mailX by mailwarm (YC S20)

Email deliverability toolkit for humans and AI agents

0upvotes
Launched May 20, 2026
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About mailX by mailwarm (YC S20)

mailX by mailwarm is an innovative email deliverability toolkit designed for both human users and AI agents. It helps diagnose why emails are ending up in spam folders by providing clear, actionable insights and precise steps to improve sender reputation and inbox placement. Built with ease of use in mind, mailX streamlines the troubleshooting process, saving users time and reducing frustration associated with email deliverability issues. Its API and MCP readiness make it highly adaptable for integration into larger marketing workflows or AI-powered systems. Whether you're an individual email marketer or a developer building automated email solutions, mailX offers a robust, user-friendly way to enhance email deliverability and ensure your messages reach the intended audience.

Screenshots

mailX by mailwarm (YC S20) screenshot 1
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mailX by mailwarm (YC S20) screenshot 4
mailX by mailwarm (YC S20) screenshot 5

Pros

  • ✓Provides clear explanations and step-by-step solutions to improve email deliverability
  • ✓Designed for both humans and AI agents, enabling seamless integration
  • ✓API and MCP ready for easy automation and customization
  • ✓Speeds up troubleshooting, saving time and reducing guesswork
  • ✓Focuses on actionable insights to improve inbox placement

Cons

  • ✗Limited user base or reviews, as indicated by no votes on ProductHunt
  • ✗Details on pricing are not specified, so cost-effectiveness is uncertain
  • ✗May require technical knowledge for full API integration

Use Cases

1Diagnosing why marketing emails go to spam and fixing deliverability issues
2Integrating email deliverability checks into automated email campaigns
3Helping AI agents improve email sending performance
4Providing actionable insights for email compliance and reputation management
5Supporting developers in building deliverability-aware email tools
6Optimizing cold outreach campaigns for better inbox placement

Pricing

Likely follows a freemium or subscription-based model, with free tier options and paid plans starting around a moderate monthly fee, depending on usage and features needed.

Quick Info

Category🤖 AI Assistants
Upvotes0
Comments19
Launched5/20/2026

Topics

EmailEmail MarketingArtificial Intelligence

Alternatives

•Postmark
•SendGrid
•Mailgun
•Litmus Spam Testing
•MailTester

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