Features
Complete email delivery platform with enterprise-grade reliability, developer-friendly APIs, and advanced deliverability tools. Everything you need to send transactional email that actually reaches your users.
High-Performance SMTP
Industry-standard SMTP with 99.9% uptime SLA. Global infrastructure with automatic failover and load balancing across multiple data centers.
- TLS encryption
- Connection pooling
- Automatic failover
RESTful API
Clean, intuitive HTTP API with comprehensive SDKs for PHP, Python, Node.js, Ruby, Go, Java, C#, and more.
- JSON payloads
- Rate limiting
- API versioning
Advanced Deliverability
AI-powered spam detection, automatic list cleaning, and real-time reputation monitoring to maximize inbox placement rates.
- Spam checking
- List hygiene
- Reputation monitoring
Real-Time Analytics
Track email performance with detailed metrics and real-time dashboard.
- Opens & clicks
- Bounces & complaints
- Geographic data
Email Templates
Dynamic templates with variable substitution and conditional logic.
- Handlebars syntax
- A/B testing
- Template versioning
Event Webhooks
Real-time notifications sent directly to your application endpoints.
- Delivery events
- Retry logic
- Signature verification
Authentication
Enterprise-grade email authentication
Protect your domain reputation and improve deliverability with comprehensive authentication protocols.
Sender Policy Framework
Prevent email spoofing by specifying which mail servers are authorized to send email on behalf of your domain.
DomainKeys Identified Mail
Cryptographically sign your emails to verify they haven't been altered in transit and confirm sender authenticity.
Domain-based Message Authentication
Define what happens when SPF or DKIM checks fail, with detailed reporting on authentication results.
Developer Experience
Built by developers, for developers
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