Rspamd
Email Security
Alternative Vendors
Commercial Alternatives
Key Features
High Performance
Event-driven architecture capable of processing hundreds of messages per second simultaneously
Advanced Filtering
Uses regular expressions, statistical analysis, machine learning, and custom services for spam detection
Lua API
Extensive Lua API allowing custom rules, plugins, and integration with external services
DKIM Support
Built-in DKIM signing and verification capabilities for email authentication
Pros and Cons
Pros
Superior Performance
Significantly faster than SpamAssassin with 10x better performance due to C implementation
Active Development
More actively maintained than alternatives with regular updates and new features
Flexible Architecture
Highly customizable with Lua scripting, multiple integration options, and plugin system
Cons
Configuration Complexity
Requires significant expertise to configure optimally for specific environments
Limited Documentation
Some advanced features and configuration options lack comprehensive documentation
Learning Curve
Requires learning Lua programming for advanced customization and rule writing
Feature Comparison
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