The SpamFilter allows to separate/filter non-spam from spam e-mails prior to downloading them. With the weak filter all e-mails coming from addresses on the "Black list" go to the spam box. With the strong filter all e-mails coming from addresses not on the "Safe list" go to the spam box. The advanced filter is useful when spamers manipulate e-mail''s headers, use fake e-mail addresses, "undisclosed" recipients, and similar tricks to avoid spam fi