Remove Users From Groups With PowerShell
A client recently assigned me to clear all group memberships for all users in an OU. Googling didn’t immediately come up with any great solutions to this seemingly simple problem. …
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How to Create an Office 365 Shared Calendar
This article will show you how to create an Office 365 shared calendar easily. A shared calendar allows your coworkers to share appointments between team members, e.g., working on the …
Sync Azure AD With PowerShell
How do you synchronize your Azure AD with your on-premises AD using PowerShell? First, let’s consider a more straightforward option: How to do it WITHOUT PowerShell! Synchronize Azure AD Without(!) …
Get-MgUser -Filter Example
The Get-MgUser command comes with a filtering function just like, e.g., Get-ADUser. But if you’re expecting the power of the Get-ADUser LdapFilter switch or the PowerShell expression language Filter switch, then you’re in …
New Exchange Zero-Day Exploits: CVE-2022-41040 and CVE-2022-41082
In the first half of 2021, the Hafnium zero-day exploit targeting on-premises Exchange servers swept the globe. In November 2021, another exploit, CVE-2021-42321, targeting Exchange was found. Now, two Exchange …
Auditing of Automated PowerShell Scripts
Modern PowerShell scripting APIs, like MS Graph PowerShell and Exchange Online Management (v2.0.3 or later), allow for automation – even in an MFA-secured environment. After you have set up all …
Automate Exchange PowerShell Script
Automating Exchange PowerShell scripts got a bit more complicated with the introduction of OAuth2 authentication and MFA (Multi-Factor Authentication). If you require all users to authenticate using MFA (and you …
How to Bulk Edit Office 365
The move from AD Users & Computers to Office 365 web consoles has disappointed many admins: You must navigate multiple consoles to configure users, licenses, and mailboxes. It’s sometimes difficult …
Connect-MgGraph -Scopes
For many admins, the use of ‘Scopes’ is a new addition to Office 365 PowerShell’ing. The Scopes parameter was introduced with the Microsoft Graph PowerShell API, but the concept of …
SharingPermissionFlags
The SharingPermissionFlags attribute on Exchange Online calendar folder permissions controls the level of delegate access to the mailbox calendar. There are two things to keep in mind when configuring SharingPermissionFlags: …