Exim Filter Specification

• Exim's interface to mail filtering
• 1. Introduction
• 2. Testing a new filter file
• 3. Installing a filter file
• 4. Testing an installed filter file
• 5. Format of filter files
• 6. String expansion
• 7. Some useful general variables
• 8. Header variables
• 9. User variables
• 10. Current directory
• 11. Significant deliveries
• 12. Filter commands
• 13. The add command
• 14. The deliver command
• 15. The save command
• 16. The pipe command
• 17. Mail commands
• 18. Logging commands
• 19. The finish command
• 20. The testprint command
• 21. The fail command
• 22. The freeze command
• 23. Obeying commands conditionally
• 24. String testing conditions
• 25. Numeric testing conditions
• 26. Testing for significant deliveries
• 27. Testing for error messages
• 28. Testing for personal mail
• 29. Testing delivery status
• 30. Testing a list of addresses
• 31. Multiple personal mailboxes
• 32. Ignoring delivery errors
• 33. Examples of filter commands