MailWasher is free to use and won't ever expire.

Use this powerful anti spam software, a reliable spam blocker, that will effectively stop email spam. Discover the safe way to stop unwanted e-mails before they get to your computer.

No gimmicks here, it is so easy to set up and use that you'll be managing your email like a pro in seconds. It can even be used as an effective privacy tool.

• Delete unwanted e-mails before you download the whole message.
• Blacklist any e-mails you bounce back get their senders details put on the blacklist for easy removal if they come back.
• Add your friends email addresses to MailWasher and they will always be recognised. You can even hide your friends from the screen so the spam is easy to recognise.
• Easily preview the message in your email to see what the sender has to say before downloading it. Just double click on the message.
• Bounce back unwanted e-mails so it looks as if your email address is not valid.