Spamjam is a spam filtering tool. Spamjam runs on UNIX (FreeBSD). It uses UNIX crontab facility to to read the user's mail at regular intervals. The mail's sender and subject fields are compared to a list of approved senders and subjects. If a mail item's sender and subject field does not match one from the approved list, the mail item is deleted. When the user logs on and checks his mail. He receives a summary list of mail items deleted.
Spamjam can be configured by the user. By using a set of special keywords and a security code in the subject field of a message sent to one's self, names and keywords can be added or removed from the approved list. Instead of receiving 20-40 spam emails a day, I now receive only those emails from my approved list, one summary email, and a email from the Cron Daemon. (A side effect from using Crontab)
Spamjam was written in C. It uses C's system command to execute UNIX C shell commands. It was written in 2002.
