Chapter 17. Killing Spam

Few words can conjure up images of replica watches, hot stock picks, and vulgar herbal supplements the way spam does. Junk email has clogged up inboxes since the early ’90s, and the problem has only gotten worse. Some experts estimate that spam now comprises 92 percent of all email sent.

Spam filters are effective at protecting against this digital onslaught. Once configured, a good filter can automatically remove up to 98 percent of the junk mail from your inbox. Consider the alternative—manually sifting through 100 messages just to find 8 good ones—and the spam filter’s value is apparent.

Two options are presented in this project: using the client-side spam filter built into the Mail application or relying on Gmail to ...

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