Your own SpamAssassin rules

• Configuration

  • Enable network rules, e.g. URIDNSBL
    • Beware of RBLs bearing false promises
    • performance will drop due to DNS lookups
  • Be careful with trusted_networks definition
    • clear_trusted_networks trusted_networks 127/8 192.168/16
  • Sample local rule (sa-mimedefang.cf):
    • header PIGEON_WARNING Subject =~ /Muttley/ describe PIGEON_WARNING Untrustworthy carrier pigeon score PIGEON_WARNING 5.0 5.0 5.0 5.0
  • Beware of non-English language messages causing false positives