Spam Defender Professional - Version 5.0.1a Spam Defender Pro allows you to delete unwanted junk mail from the server before it gets into your inbox. It allows you to decrease or even eliminate spam by using various filters. The main feature of the program is deleting messages without opening them - right on the server. This is the only sure and safe way to delete emails with potential viruses and “bugs” that spammers implant into email messages to collect active email addresses.