Outlook groups started off as an email-based collaboration platform. Now called Microsoft 365 Groups, Outlook groups have a distinctive Graph API

In an odd announcement, Microsoft shared their intention to retire most of the Azure Communication Services (ACS) from September 2028.

On September 23, Microsoft Learn announced that many of its public GitHub repositories for documentation would become private. This is a bad idea!

Microsoft launched the Microsoft 365 companion apps in November 2025 and now they have cancelled the apps. No purpose and customer confusion is a fatal mix.

Administrators know how to use the default Microsoft Graph Command Line Tools app for delegated interactive Graph sessions. Here we look at using custom apps.

After promising essentially unlimited OneDrive storage some years ago, Microsoft is now putting a hard 5 TB limit on what a user can have.

Backup vendors sell on their ability to restore data. Usually, recovery covers one or two workloads and ignores configuration data.

Microsoft has introduced a new control to stop Graph API-powered apps and agents from having access to Teams meetings transcripts.

Microsoft retired Office 365 Connectors in May 2026. You might not have noticed that some Teams channels no longer receive updates via adaptive cards.

On September 16, 2026, Microsoft announced a 12-month retirement period for support of PowerShell V5.1 by the Microsoft Graph PowerShell SDK.

The Teams Remind Me feature is a new action available to allow users to create reminders for chat and channel messages in the future.

New Outlook is an acceptable email client. Some dislike its lack of support for different features, like COM add-ins. Then Copilot gets involved...

When attempting to disable a user account in an interactive Graph session, I was told that the command failed because the accountEnabled property was invalid.

While testing the new DLP capabilities to block sharing to users and domains and stop Copilot from using external email, policies took a long time to work.

First revealed in 2015, the history of auto-expanding archives in Exchange Online has been spotty with several false starts. Now the limit will go past 1.5 TB,

A reader asked why the Outlook Mail Graph API doesn't support access to group mailboxes. The basic reason is that a group mailbox doesn't have an account.

Continuous Access Evaluation is supported by core Microsoft 365 workloads like Exchange, SharePoint, and Teams, but it's not by other workloads.

In an attempt to ease the transition to the new Outlook, Microsoft has introduced the classic Outlook style for the new Outlook and OWA.

42 months ago, Microsoft Copilot launched. Looking back, the lack of guardrails at the time was staggering, and AI had a great time wandering across SharePoint.

A Technical Community post discusses the topic of using CAE to revoke access for service principals when apps become risky or potentially compromised.

The latest restriction on tenants using MOERA (service domain) addresses in production is that Teams will restrict external collaboration from September 2026.

The September 2026 update for the four books in the Microsoft 365 for IT Pros (2027 edition) package are available for subscribers to download.

After Microsoft released some new Graph permissions, thoughts turned to how to discover new permissions as they are released. Code is the best way.

In a GitHub post, Microsoft says that interactive Graph sessions using the default Microsoft Graph Command Line Tools app will use WAM in the future.

Why would a seemingly simple Loop workspace develop into a monster SharePoint Embedded container? That's the question discussed here.

Microsoft issues new granular Graph permissions on an ongoing basis. That's good, but only if tenants use the permissions to replace wider permissions in apps.

In the article about transferring ownership of Exchange calendar events, we pointed out the Teams meeting problem. A PowerShell script helps...

Microsoft recognized the problem posed when users attempt to join recording or notetaking bots to Teams meetings in early 2026. Now smarter detection is here.

Microsoft announced details about how they will deploy the 100 GB mailbox quota to Microsoft 365 Business tenants/ A new service plan does the job.

Tenants with Microsoft 365 Archive configured can incorporate an archiving step in how Purview retention policies and labels deal with SharePoint files.

Microsoft Purview supports retention policies for Planner tasks and that's the supported way to remove old tasks from plans. But you can do it with PowerShell.

After the discussion about the licensing gap prompts shown in the Entra admin center, here's some code to find accounts that should have Entra P1 licenses.

Following up on the primer explaining how to use JSON batching, this article goes a step further and explains how to permanently remove batches of mailbox items

Microsoft Purview is expanding its ability to process data from external services through DLP policies and Information Protection auto-labeling.

The Entra admin center has started to flag licensing gaps for conditional access. This is an informational message, not the beginning of new automated billing.

Microsoft has updated SharePoint Online to provide full support for sensitivity labels assigned to OneNote and MP4 files.

The Invoke-ChangeMeetingOrganizer cmdlet can transfer meeting ownership from one user to another. Here we show how to transfer meetings in bulk.

MC1448379 announces the retirement of the MemberOf rule operator from Entra ID in early November 2026. This might affect dynamic groups and admin units.

The Invoke-ChangeMeetingOrganizer cmdlet transfers meetings from one organizer to another and makes sure that all calendar settings are preserved.

The Restricted Content Discovery (RCD) feature is an important part of Microsoft 365 Copilot deployments. Microsoft is giving RCD a makeover.

Microsoft Defender for Office 365 (MDO) can detect and quarantine email containing prompt injections. Shared mailboxes might need licenses for the protection.

A new Entra ID feature enables the ability to block nesting for security groups. That might not sound important, but it is to those who manage permissions.

The August 2026 monthly update for the Microsoft 365 for IT Pros eBook is now available for subscribers to download. All four books are updated.

A recent Reddit thread asked the very good question whether Microsoft 365 is now so complex that no single person can understand the ecosystem.

On July 29, Microsoft released their FY26 Q4 results. We learned that Microsoft 365 Copilot has 30 million paid seats, but that's still less than 7% of M365.

A new (preview) DLP capability allows Microsoft 365 tenants to block Microsoft 365 Copilot from processing the content of external email.

FromAugust 2026, Microsoft 365 tenants can apply retention policies to Planner Tasks. We prepared by writing some PowerShell to test the effect of retention.

Microsoft rushed out version 3.10.1 of the Exchange Online management PowerShell module to fix a problem with certificate-based authentication.

Teams released a new version of their PowerShell module on July 19. The new module contains WAM support and cmdlets to control federated chat.

The Microsoft Graph PowerShell Command Line tools app is how people run Microsoft Graph PowerShell SDK cmdlets. The app can suffer from permissions creep.