iCloud Junk Mail Redirection

gistfile1.applescript

on run {input, parameters}
    
    set spamAccount to "spam@icloud.com"
    set tempFolderName to "JunkMail"
    set tempFolderPath to path to home folder
    set maxSendAttempts to 5
    set maxSentDeleteAttempts to 10
    set deleteSentMessage to false
    set deleteJunkMessage to false
    
    -- Test behaviour by observing the home directory and the drafts box in Mail    
    set testingBehaviour to true
    
    -- From here onward should not need to be modified
    set tempFolder to (tempFolderPath as string) & tempFolderName
    
    -- Creates temporary folder for junk
    tell application "Finder"
        if not (exists folder tempFolder) then
            make new folder at tempFolderPath with properties {name:tempFolderName}
        end if
    end tell
    
    tell application "Mail"
        set junkMessages to every message of junk mailbox
        set messageCount to (count of junkMessages) as number
        if (messageCount is greater than 0) then
            -- Sets uniqueID to "spam report " & (round (random number from 10000 to 99999) rounding down as string)
            set messageSubject to "spam report - delete now"
            set newMessage to make new outgoing message with properties {subject:messageSubject, content:" "}
            tell newMessage
                make new to recipient at end of to recipients with properties {address:spamAccount}
            end tell
            
            set counter to 1
            repeat with junkMessage in junkMessages
                
                -- Marks as Junk for Mail
                set junk mail status of junkMessage to true
                set sourceFile to (tempFolder & ":ml" & counter & ".eml")
                set thisSource to the source of junkMessage as string
                set f to open for access sourceFile with write permission
                set eof of f to 0
                write thisSource to f
                close access f
                
                tell "Finder"
                    set theAttachment to sourceFile as alias
                end tell
                
                tell the newMessage
                    tell content
                        make new attachment with properties {file name:theAttachment} at before the first character
                    end tell
                end tell
                
                set counter to counter + 1
            end repeat
            
            set should play other mail sounds to false
            
            if testingBehaviour is false then
                -- Tries to send the message up to 5 times
                set attemptCount to 0
                repeat until attemptCount is maxSendAttempts
                    set sendResult to send newMessage
                    if (sendResult) then
                        exit repeat
                    else
                        set attemptCount to attemptCount + 1
                    end if
                end repeat
                if attemptCount is greater than or equal to maxSendAttempts then
                    display alert "Unable to send message." as critical
                    return
                end if
                display alert "Spam redirected" message messageCount & " messages were redirected to Apple!" as informational
            end if
            
            -- Pauses for one second to wait for the sent message to show up
            delay 1
            
            -- Deletes sent message
            
            if deleteSentMessage is true then
                -- Tries to delete the message over 5 seconds, at one second intervals
                set tryToDelete to 0
                repeat while tryToDelete is less than maxSentDeleteAttempts
                    set sentMessages to every message in sent mailbox where subject is messageSubject
                    if (count of sentMessages) is greater than 0 then
                        repeat with sentMessage in sentMessages
                            set deleted status of sentMessage to true
                        end repeat
                        -- stop checking
                        exit repeat
                    else
                        -- increment deletion counter
                        set tryToDelete to tryToDelete + 1
                        -- Pause for one second
                        delay 1
                    end if
                end repeat
                if tryToDelete is greater than or equal to maxSentDeleteAttempts then
                    display alert "Unable to delete sent message." as warning
                end if
            end if
            
            -- Deletes junk messages
            
            if deleteJunkMessage is true then
                repeat with junkMessage in junkMessages
                    set deleted status of junkMessage to true
                end repeat
            end if

        end if
        
        -- Turns sounds back on      
        set should play other mail sounds to true
        
    end tell
    
    -- Deletes temporary folder
    set posixJunkFolder to POSIX path of (tempFolder)
    set deleteCommand to "rm -Rf " & quoted form of posixJunkFolder
    do shell script (deleteCommand)
    
    
end run

This is a small Apple Script to redirect all current junk mail to Apple. Partially tested on Mavericks, Mail v. 7.1.
Clean-paste code into new workflow (run applescript action) to have it working.