Most Microsoft 365 user accounts don't need access to Exchange Online PowerShell. It's an administrative tool that end users don't get much value from. In this article, we explore the best way to disable Exchange Online PowerShell using a script that can run interactively or as a scheduled Azure Automation runbook (the best way for automatic management).
Microsoft actively develops Azure AD external identities and doesn't do much with mail contacts. Maybe it's a good idea to migrate mail contacts to Azure AD guest accounts. This article explores what's involved in moving mail contacts over to Azure AD guest accounts using PowerShell.
In this edition of our series on the "Top 5 Best Practices for Exchange Online Domain Transfers," we delve deeper into the importance of validating your plan prior to implementation. Implementing a well-tested and practiced process will help prevent mistakes and encountering unknowns during the migration. Join us as we explore the key considerations for a successful validation phase.
Microsoft announced that Exchange Online will block old Exchange Servers by throttling and then rejecting their inbound email into Exchange Online. The hope is that this tactic will convince those who operate unsupported versions of Exchange Server to upgrade and use supported software that isn't vulnerable to known attack vectors.
My team has recently worked on some projects featuring multi-tenant and multi-Exchange environments. A common requirement for all projects is the ability to share free/busy information across all environments. In this article, I will dive into using free/busy sharing with Exchange/Microsoft 365 in the worldwide cloud. Sharing Free/Busy Information Let’s start with the obvious issues: […]
On the show this week, find out what's happening with recent changes to Exchange Online that might cause a delay if you're setting up a fresh Hybrid environment; plus security recommendations for your on-premises Exchange environment. If you're getting into Viva Sales, we discuss what the new OpenAI GPT add-in does. Creepy or useful - you decide! Plus Microsoft Syntex's PAYG model goes live and Teams gets user experience changes that your users will certainly notice.
User Submissions is a valuable Microsoft 365 feature that helps add an extra layer of defense in your organization. In this article, Damian Scoles discusses the importance of User Submissions and how to set up your configuration.
In early December 2022, Rackspace had a major breach in their exchange environment that led to customers' mail data being stolen. This article explains what happened and what can be learned from this incident.
This article reviews using advanced message tracking to identify Junk-Mail and Spoof Messages through tools like Exchange Message Trace, Threat Explorer, Message Header Analyzer, and Advanced Hunting.
Join us as we continue the Exchange Online Domain Transfers series, focusing on the strategy phase of a Microsoft 365 domain move project.
RBAC for Applications is a new method to secure Azure AD app access to Exchange Online mailboxes. In this article, we explain how to use Managed Identities in Azure Automation with RBAC for Applications making sure that scripts can only access selected mailboxes.
Security researchers love to report software vulnerabilities that they find. That's their role and it's a valuable contribution to the technical community. However, some of the reports about Microsoft 365 flaws are over-hyped and under-considered, like a recent example covering the risk of phishing in the Exchange Online Direct Send feature.
