Methods

Whitelists
Only let through certain mail (e.g. from known senders)
Heuristics
Use rules of thumb to guess which mails are spam
Blacklists
Block mail from specific senders or with specified contents
Challenge-Response
Ask senders to perform a task (e.g. read wonky letters) before letting mail through. Success puts you on the whitelist.

Reviews

Summaries

My Favourite

PopFile

Learns to classify your email into different categories, so as well as detecting Spam, it can help you sort email into work and personal etc. It uses Bayesian statistics to learn from examples you give it. Initially it regards all email as "Unclassified", you correct it by saying "this one is spam") and it very quickly learn to label your mail.

Pop File works either on a windows PC or under Linux or other operating systems. It can be installed on your client machine (i.e. desktop) or on the email server.

http://popfile.sourceforge.net/

Windows Client Software

Server Based

Unknown

Topic revision: r2 - 20 Mar 2005, andyp
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