[imp] Automatic spam report!

[carlos maca]

 How can i make to put the detected spam messages automatically in the spam
folder, instead of reporting them as spam!?
And i want to know if there is a way to make the IMP put automatically
messages detected before as spam in the spam folder, Ex : " I have a Sender
caller "xxx at yahoo.com", that aways send me spam, how can i make my IMP
learnto mark all the mails from "
xxx at yahoo.com" as spam forever" . ?!

Sorry for my poor english, carlos.