Check Mailwasher, it helps to eliminate spam from your inbox...

Set up your email account(s) in MailWasher and hit the "Check Mail" button. It then downloads all new message headers and displays message details alongside each one (priority, subject, from, to, etc.). Any email that MailWasher considers to be spam is highlighted for easy sorting.

Two checkboxes are located next to each message header: "Delete" and "Bounce". If you click "Delete" the email will be marked for deletion, click "Bounce" and the mail will be marked for bouncing - a fake "address not found" email will be sent to the sender. Once you have decided what to bounce and delete, click "Process Mail" to get it done and your mail client launched for downloading all accepted emails.

MailWasher has a "blacklist" and a "friends list" to enter good and bad email addresses. Addresses in the blacklist are marked for deletion, and addresses in the friends list will be marked as okay. Filters can be set to increase MailWasher's effectiveness. You can have email addressed to "undisclosed recipients" automatically deleted and bounced for example.

Note: the program is free but limited to one email account. MW Pro supports multiple mail accounts ($29.95).

http://www.mailwasher.net/