MC276050: Advanced Hunting: Surfacing more email data from Microsoft Defender for Office 365

We’re happy to share new enhancements to the advanced hunting data for Microsoft Defender for Office 365 in Microsoft 365 Defender. As part of this update, we have added new columns and data points to make your investigation experience better and more relevant. These additions will be rolling out in public preview, and should be …

MC276028: Plus addressing to be enabled for all Exchange Online customers

Plus addressing support in Exchange Online was released in September 2020 as an opt-in feature. This was due to preexisting usage of plus signs (+) for email addresses in the service. At the same time, we made plus addressing on by default for new customers. Updated August 12, 2021: Based on initial feedback, there are …

MC275807: Removing Message Trace in SCC. Move Custom Queries to Message Trace in the new Modern EAC

We will be retiring Message Trace in the Security and Compliance Center (SCC) from the Security Portal beginning November 2021. In place of this feature, we recommend you use the Message Trace in the Exchange Admin Center (EAC), which is where we will continue to invest our development resources. Updated October 08, 2021: Based on …

MC274503: Update to Microsoft 365 and Outlook for Windows connectivity

3-month Reminder (First published December MC229143): To ensure that we meet performance expectations, we are updating the supported versions of Outlook for Windows that can connect to Microsoft 365 services. Effective November 1, 2021, the following versions of Outlook for Windows, as part of Office and Microsoft 365 Apps, will not be able to connect …

MC272450: Sender-recipient pair receiving limits in Microsoft Office 365

We are updating our receiving limits in Exchange to help prevent attacks on your mail flow experience. Earlier this year in (February MC239262) we announced a stricter enforcement of our mailbox receiving limits. Taking your feedback into consideration, we are releasing an additional limit to block single-sender mail storms and deter DoS attacks. Our mailbox …

Solved: How do I fix “A reboot from a previous installation is pending” error?

Problem Symptom: “A reboot from a previous installation is pending” error display when installing Microsoft Exchange, applying cumulative update, or installing the upgrade using GUI management tools. Even after reboot the server, the same error will prompt. The detailed error message as below: A reboot from a previous installation is pending. Please restart the system …

MC271629: Outlook on the web: Project Moca migrating to Outlook board view

Thank you for using the public preview (MC224257) of Project Moca! It was a success, and we will begin migrating content from Project Moca to the new Outlook Calendar board view in July. All boards and content will be migrated and users will not lose any data. This message is associated with Microsoft 365 Roadmap …

MC244733: Customization for Quarantine Notification and Alerts in Microsoft Defender for Office 365

We are making it possible for you to customize quarantine notifications with your organization logo, custom display name, and a custom disclaimer. This message is associated with Microsoft 365 Roadmap ID 64781. With this update, tenant administrators will be able to add various customized components to quarantine notifications and alerts, such as an organization logo, …

MC244732: Request Release workflow for quarantined messages with custom policy and folder

With this new quarantine policy, tenant admins will be able to configure end user access to messages quarantined by the Exchange Online Protection (EOP) anti-spam, Microsoft defender for office 365 (MDO) anti-phishing, anti-malware and Microsoft defender for office 365 (MDO) safe attachment policies. End users will also now have a process to request message release. …