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Avatar photoRobert Allen

Founder, Owner, and Product Development at Active Directory Pro.

Robert has extensive experience in Windows System Administration, Office 365, Azure, Cisco switches and routers, VMWare, PowerShell, L2, and L3 networking, network security, Cisco ASA, and Fortigate firewalls. Robert Allen holds several IT certificates including, MCSE, MSA, CCNA, CCNA Security, and CompTIA Security +.

Since launching Active Directory Pro, Robert has published several detailed how-to guides and best practices that have become very popular. Active Directory Pro is now one of the most popular resources for information on Active Directory, Microsoft Servers, and related technologies.

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November 19, 2022

How to Add Email Disclaimer in Office 365

In this guide, you’ll learn how to add an email disclaimer in Office 365. An email disclaimer can also be … Read more

September 10, 2023

Account Lockout Policy: Configuration Guide

In this guide, you will learn about the three account lockout policy settings and how to properly configure each policy … Read more

April 12, 2023

27 Office 365 Security Best Practices

This is the ultimate guide to Office 365 Security best practices. In this guide, I’ll share my recommendations for improving … Read more

Steps to whitelist a domain in office 365

November 19, 2022

Steps to Whitelist a Domain in Office 365

In this guide, I will walk you through step by step how to whitelist a domain in Office 365 Before … Read more

June 14, 2024

Get-ADUser Examples With Screenshots

Looking for a list of Get-ADUser examples and filters? Then look no further. In this guide, I’ll show you how … Read more

October 14, 2022

Convert User Mailbox to Shared Mailbox

In this guide, I will walk you through step by step how to convert a regular user mailbox to a … Read more

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Recent Articles

  • Remove Attribute Value in Active Directory
  • Configure Interactive Logon Message Using Group Policy
  • Find Active Directory Users with Empty (Null) Attributes
  • Disable Password Never Expires for Multiple Users
  • How to Force Replication Between Domain Controllers

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