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Sams Teach Yourself TCP/IP in 24 Hours, Fourth Edition by Joe Casad

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Spam

No recent development in email technology has had more impact than the rise of spam. Spam is the nickname for the mass-mail email messages that clutter the mailboxes of millions of Internet users. The messages advertise bank loans, dietary aids, charity scams, and various products and services on the theme of ephemeral gratification. Technologically, spam is just email—that’s why it works. The email servers routing a message don’t know whether the message was generated by an odious automation scheme or by a loved one of the recipient.

Luckily, the receiver has some options for identifying and eliminating spam. Some of the techniques used for fighting spam are based on TCP/IP principles and are therefore relevant to this book. However, as ...

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