Messages that I marked as spam still come in from that sender unmarked and do not go directly into spam folder. In other words, marking them as spam does nothing and is useless. I get dozens of spam messages from particular people trying to get me to buy software or services, and they just keep coming in. (The only way I can manage it at all is to create a filter to have them go directly into a folder for these garbage messages. I've done this for a couple of the senders, and it works. However, they ARE still coming in unmarked and unrecognized as the SPAM that they are.)