Well, Spam is a meat product distributed by Hormel. Spam also happens to the term used for any unsolicited email. A better description of spam is email that is unsolicited and does not have a legitimate return address label. There are email messages that you receive that are still unsolicited; however, they are coming from legitimate sources.
Another method is by specialized software that hunts for email addresses. The software is set loose on web sites, bulletin boards, Usenet, and other documents published on the internet. These address hunters, create their lists, and use them for email distributors.
Finally, there's the sneaky way... The spammers send a message to some list that they have. However, that list may have lots of invalid addresses. So, they clean it up by putting a link on the bottom of a message telling you to "click here" to remove yourself from the list. Once you click here, the spammer now knows that this was a valid address, and moves your email address to a "good" list.
With true spam, the return address is usually invalid. Therefore, it is difficult to determine who really sent it. Many times you'll see spam from Hotmail.COM or AOL.COM. These are just about impossible to trace without a lot of technical research to trace the message. These messages probably traversed many networks or even countries before it ended up in your Inbox.
Pennsylvania Crimes Code, Title 18, Chapter 76, Section 7661, which was introduced in 2003, addresses some issues with the transmission of electronic mail.
Campus policy restricts the sending of unsolicited email except when approved by department directors, chairs, deans, VPs, and the president. This policy can be found in the current Rams Eye View.
Email addresses can be added to the blacklist and whitelist individually or in bulk:
Note: Be sure to save any changes you made before logging out of Barracuda.