Email: The Difference Between Junk and Spam

Bob Young
5 min readMay 30, 2019

Junk email and spam email aren’t the same, and you should treat them differently. Here’s everything you need to know.

First, a brief disclaimer… Although there’s a technical difference between junk email and spam email, most people use the terms interchangeably. Also, some email programs don’t make a clear distinction. One email program lets you mark email as “junk.”

Another email program lets you mark email as “spam.”

And yet another email program lets you choose whether to mark an email as “spam” or “junk.”

In this article I’m going to explain the technical difference between spam and junk, but your email program may not let you take advantage of this information.

Junk

Let’s start with the paper, “snail mail” equivalent, and consider junk mail. Suppose that you’re old enough to be a member of AARP, and you decide to join. Periodically, AARP will send you special offers in the mail: discounted vacations, life insurance, cell phone deals, and so forth. These are legitimate offers. If you pay money for the cruise to the Bahamas, you’ll actually get to take a cruise to the Bahamas. But if you’re not interested, you call it “junk mail” and throw it in the wastebasket.

Junk email is the electronic equivalent to paper junk mail. Junk email is legitimate offers from real companies. You may not want it, and you may find it annoying, but it’s not illegal or fraudulent.

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Bob Young

CISO, Director of Information Security, and Security Consultant. Also, I wrote some books that have nothing to do with IT. http://www.amazon.com/author/bobyoung