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Some books claim to cover it all and cover it in depth, but they rarely succeed at both goals. This book is completely focused on PowerShell for Purview and Defender for Office, and PowerShell is covered in depth! Interested? Read on! Not only is the book focused on and deep dive into PowerShell for Exchange Online, but all content is also practical, focused on real-world scenarios and knowledge gained through experience.

Updates Throughout the Year

Changes are natural in the world of cloud computing, and Purview / Defender for Office is no different. PowerShell that we use to manage it also changes over the course of weeks, months, and years. To help you deal with this, we update our book frequently with the latest topics, content, and PowerShell cmdlets. If the module for Exchange Online is updated to v4, we will cover those changes as well and if a connected service like Exchange changes, we'll cover that as well.

Cloud Changes

The book is written and maintained by Microsoft Most Valuable Professionals (MVPs) who specialize in Purview / Defender for Office and PowerShell and cover the topics expertly. We watch Microsoft for changes in PowerShell (monitoring cmdlets available) to their Roadmap and Message Center so you don't have to. We cover as many changes as we can in each update. As the book is always up to date, Purview / Defender for Office is unlike any printed professional reference book you have used in the past.

This book is aimed at those who know some PowerShell or are looking for ways to make their scripts better as well as help you become more confident in managing Exchange Server with PowerShell.

What’s Covered

What’s New
PowerShell Basics
Beyond the Basics
Connecting with PowerShell
Identity Management
Security
Alerting
Defender for Office 365
Submissions
Threats and Mail Flow
Compliance
Communication Compliance
Data Loss Prevention
Device Management
Information Barriers
Insider Risk Management
Labels
Privacy Management
Building Scripts
Reporting
Troubleshooting
Best Practices

Chapters

This book has the following Chapters in which we cover a range of subjects relating to PowerShell:

1. PowerShell Basics: Used as a launching platform for PowerShell, this Basics chapter introduces you to PowerShell topics to help new PowerShell users understand PowerShell in relation to Purview and Defender for Office. Coverage includes variables, arrays, hash tables, loops, and more. Examples are geared towards Exchange Online to help with relevancy.

2. Beyond the Basics: Continuing on your PowerShell journey, we now cover more advanced topics like formatting your output, understanding data handling, and other helpful tips for moving forward with PowerShell and Purview / Defender for Office.

3. Connecting with PowerShell: This is a simple topic that can be complicated by Microsoft's changes. We cover the various methods for connecting to Purview / Defender for Office and also discuss some of the nuances of the new v3 Exchange module.

4. Connecting to Exchange Online PowerShell: This is a simple topic that can be complicated by Microsoft's changes. We cover the various methods for connecting to Exchange Online and also discuss some of the nuances of the new v3 module.

5. Identity Management: Identity is the key in Microsoft 365 because, without it, users nor administrators will have access to Exchange Online. This chapter dives into how to handle identities in Exchange Online and hybrid identities synced from an on-premises Active Directory.

6. Security: Security and access management are important to any service provided by an enterprise. PowerShell can be used to manage Roles and RBAC your tenant.

7. Alerting: Alerts are key to an administrator's awareness of their environment; we explore how to configure these with PowerShell.

8. Defender for Office: Message hygiene and protection of end-user mailboxes are important aspects of this book, and we cover using PowerShell to manage settings, phishing sims, filtering, and more. External script analysis is also covered.

9. Submissions: When a user or administrator receives a malicious email, they can report these messages. PowerShell can be used to manage and monitor this feature.

10. Threats and Mail Flow: This chapter covers reporting and managing certain aspects of a tenant, from Investigations to Explorers to Campaigns and more.

11. Compliance: Compliance Case are maintained in either the Defender portal or in the PowerShell module for Defender for Office. We cover how to create, remove, modify and more for these cases.

12. Communication Compliance: Controlling mail flow sometimes requires monitoring internal emails and Communications compliance is the place to do this.

13. Data Loss Prevention: Within this chapter, coverage of PowerShell and DLPS, SITS, Fingerprints and more is done with a focus on the real world.

14, Device Management: Exchange mailbox users typically connect to their mailboxes with Outlook desktop, OWA, and Mobile Devices. We cover PowerShell and mobile device management solely within the Exchange Online PowerShell module / world in this chapter.

15. Information Barriers: These are also known as logical barriers and control communications between groups of features. The new feature is the v2 version, which is covered now as well.

16. Insider Risk Management: Covers a feature geared to protecting resources from internal users. Dig deep into how to configure and use it practically in your tenant.

17. Labels: Categorizing documents, protecting documents is the purpose of labels and we cover this and how PowerShell can be used together with the Purview portal.

18. Privacy Management: Still new to Purview, Privacy Management relates to personal data that may be present in a tenant. PowerShell is available to maintain this depature.

19. Building Scripts: Now that we've covered the basics, this chapter is dedicated to building your own scripts for usage in management of Purview/Defender for Office. Truly focused on real-world examples and getting the most out of the power of PowerShell.

20. Reporting: PowerShell is great at gathering data and outputting large sets for consumption by management and administrators alike. In this chapter, we cover how we can use PowerShell to create relevant reports with PowerShell.

21. Troubleshooting: Things break. We get red in PowerShell. Sometimes we get yellow. What does it all mean? In our Troubleshooting chapter we cover how to troubleshoot issues that you may experience when using PowerShell in Exchange Online. Expert tips and techniques are covered.

A. Best Practices: PowerShell has some hard and fast rules that we must observe; however, sometimes, we near guard rails to guide us to better results. Best Practices focuses on generally agreed-upon methodologies and techniques for PowerShell scripting.

B. Miscellaneous: Some topics just don't fit in the rest of the book, and miscellaneous or menagerie are good terms for this chapter. Some are dedicated to PowerShell-specific concepts, while others are focused on Exchange PowerShell scenarios.

C. Secure Score: No real PowerShell is available for this feature, but we still cover its importance in informing administrators about their Microsoft 365 security stance.

Value

Simply put, with over 540 pages written and maintained by experts, this book is of great value to IT Professionals. Any sort of training or consultants who would instead do the work for you would cover many times the cost of this book.

Note: Exchange Online PowerShell is purchased as a subscription service.

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Kick off your book project in 3 hours! Live workshop on Zoom. You’ll leave with a real book project, progress on your first chapter, and a clear plan to keep going. Saturday, May 2, 2026. Learn more…

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