Jsoft Anti-Spam is a program that, as the name implies, will filter junk mail before it reaches your mailbox. It analyzes the incoming emails to identify the sender and to check whether he is authorized to send you mail.Those who do not fit in this frame will have to identify themselves. A whitelist system allows you to authorize the mails of your usual correspondents. When this is not the case, emails that have been blocked remain pending validation on your PC.
Jsoft Anti-Spam is proposed here for testing in a version compatible with Windows systems. The license is for sale on the official website of the software.