Documentation
Access all information about Zetian SMTP Server here. Everything from quick start guide to detailed API reference.
Getting Started
Quick setup and first steps
- Installation
- First Server
- Basic Concepts
- Quick Start
Configuration
Server settings and configuration
- Port Settings
- TLS/SSL
- Rate Limiting
- Message Filters
Authentication
Security and authentication
- PLAIN Auth
- LOGIN Auth
- Custom Auth
- TLS/STARTTLS
Message Processing
Receiving and processing messages
- Event Handlers
- Message Storage
- Filtering
- Forwarding
Storage Providers
Message storage backends
- SQL Server / Azure SQL
- PostgreSQL / MongoDB
- Redis Cache
- S3 / Azure Blob
Relay
SMTP relay and proxy features
- Smart Host Support
- Queue Management
- Load Balancing
- MX Routing
Anti Spam
Advanced spam protection
- Bayesian Filtering
- SPF/DKIM/DMARC
- RBL/DNSBL Checking
- Greylisting
Extensions
Plugin and extension development
- Custom Filters
- Storage Providers
- Event Extensions
- Middleware
Monitoring
Real-time metrics and observability
- Prometheus Exporter
- OpenTelemetry
- Server Statistics
- Grafana Dashboard
Clustering
High availability and scaling
- Leader Election
- Load Balancing
- State Replication
- Multi-Region Support
Health Check
Health monitoring and checks
- Basic Setup
- Custom Checks
- Kubernetes Integration
- HTTP Endpoints
API Reference
Detailed API documentation
- SmtpServer
- SmtpServerBuilder
- ISmtpMessage
- Events