Handlers

• Acknowledgment headers
• Message acknowledgment
  • Non-member posts
  • No acknowledgment requested
  • Requested acknowledgments
• After delivery
• Archives
• Avoid duplicates
  • Short circuiting
  • Suppressing the list copy
• Cleansing headers
  • Anonymous lists
• Cooking headers
  • Saving the original sender
  • Mailman version header
  • Precedence header
  • Personalization
• Message decoration
  • Short circuiting
  • Simple decorations
  • Adding archiver permalink URLs in the message footer
  • Handling RFC 3676 ‘format=flowed’ parameters
  • Decorating mixed-charset messages
  • Decorating multipart messages
  • Decorating other content types
• Digests
  • Short circuiting
  • Sending a digest
• DMARC Mitigations
• File recipients
  • Short circuiting
  • Existing file
• Content filtering
  • Filtering the outer content type
  • Simple multipart filtering
  • Collapsing multipart/alternative messages
  • Conversion to plain text
  • Discarding empty parts
  • Passing MIME types
• Calculating recipients
  • Regular delivery recipients
  • Digest recipients
  • Urgent messages
• NNTP Gateway
• List owner recipients
• Reply-to munging
  • Reply to list
  • Explicit Reply-To
• Automatic response handler
  • Basic automatic responding
  • Short circuiting
  • Available auto-responses
  • Grace periods
• RFC 2919 and 2369 headers
  • Fewer headers
  • List-Post header
  • List-Id header
  • Archive headers
• Subject prefixes
  • No Subject
  • Inserting a prefix
  • Internationalized headers
  • Prefix numbers
• Message tagger
  • Scanning body lines
  • Scanning sub-parts
• The outgoing handler