An easy to use and free anti-spam plugin for Adium
Version: 25566Challenge/Response is an anti-spam plugin for Adium 1.3 or later. It works by hiding messages until the user answers a question you have picked. For example, "What is the square root of 49 in numerical form?" must be responded to with "7".
Operating System: Mac OS X
When the user responds correctly, all of the messages that were hidden are displayed as though C/R never did anything, and the user is added to the C/R whitelist so that they will never be asked again.
C/R works by displaying this prompt to unknown users, which are classified as:
· Users not in your contact list (this excludes AIM's "recent buddies" group),
· Users not in your C/R whitelist, and
· Users you do not have a chat opened with
Since you set the challenge and response, the spam bots won't know what to say.
You can easily find the C/R preferences in the Adium menu, under the Privacy Settings. You must enable C/R and set the challenge and response before it will do anything. If you disable C/R, it will be able to display all the saved messages from users who
You can optionally log all messages which were hidden by C/R to a group chat called ChallengeResponse (one is created per account, a limitation imposed by the logger plugin currently). You can also hide all messages from blocked users, for protocols like MSN where blocked users can still message you.