Spam Blocker Freeware

Procmail is a popular component of unix-based smtp/pop/imap mail systems, and can be configured for spam filtering.
Spammers sometimes use uri escapes within the bodies of their messages as a crude means to disguise the locations of their websites.
A reverse web proxy takes requests from website visitors and relays them to the protected spam website, returning any data it receives from the protected site back to the visitor.
To the visitor, the proxy itself appears to be the spam website, and there is no good way to tell that it is actually only a proxy.
Cancel Bot: a program which automatically detects and cancels spam or other unwanted articles.
Standalone spam blockers are not as common as integrated blockers, but they prove just as efficient.
Standalone spam blocker software can easily be installed on to your computer, and allows you to preview your mail on the server before downloading it to your computer.

spam blocker freeware