Category: Exchange Online

If your tenant uses legacy Exchange Online tokens, they will be deprecated and Outlook add-ins that still use them will break when tokens are turned off. NOTE: This change only applies to Exchange Online; add-ins used in on-premises environments are not impacted by this change. Recommended actions: When will Microsoft turn off legacy Exchange Online …

Microsoft would like to inform you about an upcoming change in the way you access and manage your Exchange Online audit logs. Starting April 30, 2024, Microsoft will be retiring the following four cmdlets in the Exchange Online V3 module: When this will happen: Microsoft will roll out this change late April 2024 and expect …

Currently available in preview, Microsoft is rolling out a new action for Data Loss Prevention in Exchange Online called “Deliver the message to the hosted quarantine”.  When this will happen: Rollout is expected to be complete by late November 2023. How this will affect your organization: Previously while managing messages delivered to hosted quarantine, admins …

Exchange online protection (EOP)/ Defender for Office 365 (MDO) customers who want to send phishing simulation emails, need to configure advance delivery policy for optimal behavior. This policy will ensure that emails that match your conditions are delivered unfiltered to the Inbox and that safe links time of click protection and post-delivery actions are disabled. …

The Activity-Based Authentication Timeout for Outlook on the web will be replaced by Idle Session Timeout for Microsoft 365. When this will happen: Microsoft expect to complete by mid-February 2024. How this affects your organization: At the end of 2023, we will be ending support for Activity-Based Authentication Timeout, at that point all organizations who …

In order to better protect our customers from exact domain spoofing attacks and improve deliverability of email, Microsoft is making changes to how we handle DMARC p=reject and p=quarantine. For the enterprise customers, Microsoft is making updates to how DMARC policy-based reject can be handled. This change will help Security Administrators be able to choose …

When all holds and retention policies are removed from an inactive mailbox, it becomes soft-deleted and remains in Exchange for a period of time to allow for recovery before permanent deletion. Based on customer feedback, and to maintain consistency with other solutions, Microsoft will be changing this period to 30 days (from current 183 days). …