MX18
MX18 is a developer-first email delivery platform that provides a full-stack API and SMTP solution engineered for scale, speed, and reliability. The platform offers AI-powered deliverability optimization, real-time analytics, and multi-region infrastructure with a 99.9% uptime guarantee, supporting SDKs for Node.js, Python, PHP, Ruby, Go, Rust, and Java.
- Marketing Technology
- Developer Tools
- Software Only
- Artificial Intelligence
- Data & Analytics
Funding
Founders
Founder details are not available yet.
Product
Problem
Email delivery remains fragmented and unpredictable, with developers facing complex SMTP layers, unreliable inbox placement, and limited visibility into what happens after messages are sent. This lack of transparency and control makes it difficult for engineering teams to ensure their emails reach users reliably, especially as volumes scale.
Solution
MX18 provides a full-stack, developer-first email platform engineered for scale, speed, and reliability. The platform offers instant API access with one-line sending, rich webhook events, and support for multiple programming languages including Node.js, Python, PHP, Ruby, Go, Rust, and Java. MX18 leverages AI-powered deliverability through smart reputation monitoring and pre-send optimization to maximize inbox placement rates, while its multi-region infrastructure ensures 99.9% uptime. The platform includes intelligent email routing, automated suppression management, and comprehensive deliverability diagnostics, giving developers complete control over their email pipeline with real-time observability and actionable insights.
Target Audience
Primary customers are developers, SaaS platforms, marketplaces, and enterprises that need reliable, scalable email delivery infrastructure with deep technical control and transparent analytics. The platform also serves service providers and businesses across industries requiring high-volume transactional email capabilities.
Features
- REST API and SMTP support with instant API key generation and one-line sending capabilities
- AI-powered deliverability optimization with smart reputation monitoring and pre-send analysis
- Real-time analytics dashboard with event-level logs, routing intelligence, and reputation scoring
- Multi-region infrastructure with 99.9% uptime guarantee and GDPR/DPDP compliance
- Automated warmup, bounce classification using machine learning, and reverse DNS validation
- Webhook endpoints with flexible configuration and sandbox mode for testing
- Dedicated IP options with automated warmup and monthly deliverability audits
- Email validation API with 2,500-5,000 validations monthly depending on plan
- TLS encryption, IP access logs, and PII data privacy controls
- SDKs for Node.js, Python, PHP, Ruby, Go, Rust, and Java with detailed documentation
- API-based intelligent routing with custom arguments and headers
- India local data residency option and event webhook security