Exim Filter Specification

• Exim's interfaces to mail filtering
• 1. Forwarding and filtering in Exim
• 1.1 Introduction
• 1.2 Filter operation
• 1.3 Testing a new filter file
• 1.4 Installing a filter file
• 1.5 Testing an installed filter file
• 1.6 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 a list of addresses
• 3.27 Testing for personal mail
• 3.28 Alias addresses for the personal condition
• 3.29 Details of the personal condition
• 3.30 Testing delivery status
• 3.31 Multiple personal mailboxes
• 3.32 Ignoring delivery errors
• 3.33 Examples of Exim filter commands