February 2026
Intermediate to advanced
456 pages
17h 3m
English
Content preview from Digital Forensics, Investigation, and Response 5E, 5th Edition
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How Email Works
You might already have a strong working knowledge of how email works. If you don’t, this section provides a common base of knowledge, which allows you to get the most from this chapter. As with most aspects of digital forensics, it is very difficult to perform forensics without a basic knowledge of the underlying technologies.
Different types of devices and methods generate emails. Most commonly, a user composes a message on his or her computer or perhaps a tablet or phone, and then sends it to his or her mail server. At this point, the user’s computer is finished with the job, but the mail server still has to deliver the message. A mail server is like an electronic post office—it sends and receives electronic mail. Most of ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.