A question asked about the best way to remove channel messages from Teams. Microsoft 365 retention policies are an option, but you'll have to wait for retention processing to complete. PowerShell helps because you can create a script to remove all messages and replies from a channel. Everything works, but processing is slow, as we discover when we plunge into the details of writing code.
Microsoft has a new approach to control private team discoverability. You can have all-in access by enabling discoverability through Teams policies or granular access by using sensitivity labels to control if private teams are discoverable or not. This article explains how both methods work.
Anecdotal evidence is that some spam originates from onmicrosoft.com domains. These are the domains used by Microsoft 365 tenants and the spam indicates that attackers sign up for 'disposable' tenants to send their malware. This article describes what onmicrosoft.com domains are and how to use a mail flow rule to control their traffic.
In a February 12, 2024 tweet, Microsoft revealed that the percentage of Entra ID multifactor authentication by user accounts has reached 38%. In this article, we show how to use sign-in records to figure out if people use MFA and calculate the percentage of user accounts protected by MFA in a tenant.
An article published in 2021 about creating a Teams policy assignment report didn't include group-based assignments. With some adjustments to the PowerShell code fills the gap and we now have a complete report, which is always nice.
This article describes how to include user license costs in a Microsoft 365 tenant licensing report created with the Microsoft Graph PowerShell SDK. The report includes annual costs for all licenses assigned to each user plus an overall licensing summary for the tenant. It even reports how effective the tenant is at assigning licenses!
Microsoft doesn't provide a PowerShell cmdlet to return an accurate MFA status for Entra ID user accounts, but by combining data from multiple sources we can write a script to generate a report showing details of user password settings and MFA status.
The tenant block list controls traffic that Exchange Online blocks from different domains. The block list is an important tool but maintaining it can take a lot of time. This article discusses how to automate the process using a combination of SharePoint Online, Exchange Online, and the Microsoft Graph PowerShell SDK.
A January 19 report from the Microsoft Security Response Center (MSRC) tells of an attack by Russian state actor Midnight Blizzard against Microsoft corporate systems. The attack resulted in the exfiltration of some email and documents from email accounts owned by senior Microsoft employees.
In a January 15 announcement, Microsoft says that they have removed the previous restrictions that applied to purchases of Copilot for Microsoft 365 licenses. Office 365 E3 and E5 tenants can now buy and deploy Copilot and the requirement to buy a minimum of 300 licenses is gone. Suddenly, 2024 has become much more interesting from an AI perspective for many Office 365 tenants.
People have used Outlook's Junk Email Options for years to maintain sets of safe and blocked recipients. The possibility exists that Outlook's safe list might interfere with the processing of email by Exchange Online Protection. This article explores the feasibility of disabling Junk Email Options to use tenant-level blocks instead.
Microsoft 365 subscriptions are what tenants buy to access functionality. The service plans in the subscriptions (product licenses) control what features are available. This article explains how to use PowerShell to generate a report about subscriptions and the service plans in each license.
