This turns off automatic spam filtering in Apple Mail, including the Filter spam messages in other mailboxes feature. If the Apple Mail plug-in and rule are still enabled in Mail, SpamSieve will tell Mail that each message is good so that stays in the inbox. You can still manually tell SpamSieve to filter messages using the Filter Messages command in the menu bar icon.
This enables spam filtering in Apple Mail, as described in the Setting Up Apple Mail section. The summary of the Mail extension setup is:
This enables spam filtering in Apple Mail, as described in the Setting Up Apple Mail (Plug-In) section. The summary of the Mail plug-in setup is: