Exim Filter Specification

• Exim's interfaces to mail filtering
• 1. Forwarding and filtering in Exim
• 1.1. Introduction
• 1.2. Testing a new filter file
• 1.3. Installing a filter file
• 1.4. Testing an installed filter file
• 1.5. Details of filtering commands
• 2. Sieve filter files
• 2.1. Recognition of Sieve filters
• 2.2. Saving to specified folders
• 2.3. Strings containing header names
• 2.4. Exists test with empty list of headers
• 2.5. Header test with invalid MIME encoding in header
• 2.6. Address test for multiple addresses per header
• 2.7. Semantics of keep
• 2.8. Semantics of fileinto
• 2.9. Semantics of redirect
• 2.10. String arguments
• 2.11. Number units
• 2.12. RFC compliance
• 3. Exim filter files
• 3.1. Format of Exim filter files
• 3.2. Data values in filter commands
• 3.3. String expansion
• 3.4. Some useful general variables
• 3.5. Header variables
• 3.6. User variables
• 3.7. Current directory
• 3.8. Significant deliveries
• 3.9. Filter commands
• 3.10. The add command
• 3.11. The deliver command
• 3.12. The save command
• 3.13. The pipe command
• 3.14. Mail commands
• 3.15. Logging commands
• 3.16. The finish command
• 3.17. The testprint command
• 3.18. The fail command
• 3.19. The freeze command
• 3.20. The headers command
• 3.21. Obeying commands conditionally
• 3.22. String testing conditions
• 3.23. Numeric testing conditions
• 3.24. Testing for significant deliveries
• 3.25. Testing for error messages
• 3.26. Testing for personal mail
• 3.27. Testing delivery status
• 3.28. Testing a list of addresses
• 3.29. Multiple personal mailboxes
• 3.30. Ignoring delivery errors
• 3.31. Examples of Exim filter commands