Webopedia on Google+Webopedia on TwitterWebopedia on FacebookTech Bytes Blog
Main » TERM » C »


The CAN-SPAM Act of 2003 (acronym for Controlling the Assault of Non-Solicited Pornography And Marketing Act of 2003) officially came into law on January 1, 2004. The CAN-SPAM Act applies to almost all businesses in the US that use e-mail, and provides recipients of spam with the right to opt-out of these spam messages, and have their opt-out (or unsubscribe) request acted upon.  Under the CAN-SPAM Act of 2003, permission of the e-mail recipient is not required prior to sending out the e-mails, however if a recipient wants to unsubscribe or opt-out of the mailings then the business must stop sending the e-mails as per the opt-out request or face severe penalties.

In addition to enforcing an opt-out or unsubscribe system for recipients, the CAN-SPAM Act of 2003 also prohibits some of the common spammer trickery such as; changing mail servers to send the spam, changing e-mail headers or the "from" e-mail address to hide the identity of the sender, and using deceptive subject heading.

Damages for non-compliance can result in the spammer facing fines of up to $250 per illegal e-mail message up to a maximum of $2 million or more if the offense includes certain aggravating violations. In situations involving e-mail deception, the penalty could be jail time.

29 Free Android Apps for Cash-Strapped Students

From wacky alarm clocks to lecture hall tools and after class entertainment, these Android apps are a good fit for a student's life and budget. Read More »

Sharing Threat Intelligence

A growing number of startups make the sharing of threat intelligence a key part of their solutions. Read More »

Smiley Faces and Symbols

A text smiley face is used to convey a facial expression or emotion in texting and online chat conversations. This Webopedia guide shows you how... Read More »

The 7 Layers of the OSI Model

The Open System Interconnection (OSI) model defines a networking framework to implement protocols in seven layers. Use this handy guide to compare... Read More »

Network Fundamentals Study Guide

Networking fundamentals teaches the building blocks of modern network design. Learn different types of networks, concepts, architecture and... Read More »

Computer Architecture Study Guide

This Webopedia  study guide describes the different parts of a computer system and their relations. Read More »