Go into Messages > Options > Email Settings > Menu Key > Folder Redirection > Place a check next to your ABC folder > Menu Key > Save.
Send a message to yourself that the rule will move it to the appropriate folder and see if it shows in your inbox.
If you don't want those messages to show in your messages folder, Messages > Options > General Options > Hide Files Messages = Yes.
If you hide the filed messages and want to view them, go to Messages > View Folder, and select your ABC folder.
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