You can use Outlook rules to automatically organize messages into folders. If you want SpamSieve to filter these additional folders (rather than just the inbox), create an additional SpamSieve inbox folder for each folder that you want to be filtered. For example, if you messages from x@y.z to end up in folder XYZ, create two folders: XYZ and InboxSpamSieveXYZ. Create an Outlook rule called InboxSpamSieve (XYZ) that moves the desired messages into folder InboxSpamSieveXYZ. When SpamSieve checks for new messages, it will move the good messages in InboxSpamSieveXYZ to XYZ and the spam messages to Junk.