Skip to Content

MC280920: Microsoft Defender for Office 365: Quarantine message preview enhancement

Microsoft is changing the way users preview quarantined messages to provide additional security against embedded threats. With this change some components in quarantined messages will be distorted and not displayed by default. To see the full contents of the message, users can choose to reveal the full message. This message is associated with Microsoft 365 Roadmap ID 82098.

We’re changing the way users preview quarantined messages to provide additional security against embedded threats. With this change some components in quarantined messages will be distorted and not displayed by default. To see the full contents of the message, users can choose to reveal the full message.

MC280920: Microsoft Defender for Office 365: Quarantine message preview enhancement

When this will happen

  • Microsoft will begin rolling this out to standard release customers in mid-September and they expect to be complete by the end of September.
  • Microsoft will begin rolling this out to government customers in end of September and they expect to be complete by the early of October

How this will affect your organization

Users will not initially see all components of a message in quarantine until they click the button to load external resources within the message.

Initial View

Initial View Quarantine message

Enhanced View

Enhanced View Quarantine message

What you need to do to prepare

No action required. You may want to update your documentation accordingly.

Message ID: MC280920

Alex Lim is a certified IT Technical Support Architect with over 15 years of experience in designing, implementing, and troubleshooting complex IT systems and networks. He has worked for leading IT companies, such as Microsoft, IBM, and Cisco, providing technical support and solutions to clients across various industries and sectors. Alex has a bachelor’s degree in computer science from the National University of Singapore and a master’s degree in information security from the Massachusetts Institute of Technology. He is also the author of several best-selling books on IT technical support, such as The IT Technical Support Handbook and Troubleshooting IT Systems and Networks. Alex lives in Bandar, Johore, Malaysia with his wife and two chilrdren. You can reach him at [email protected] or follow him on Website | Twitter | Facebook

    Ads Blocker Image Powered by Code Help Pro

    Your Support Matters...

    We run an independent site that is committed to delivering valuable content, but it comes with its challenges. Many of our readers use ad blockers, causing our advertising revenue to decline. Unlike some websites, we have not implemented paywalls to restrict access. Your support can make a significant difference. If you find this website useful and choose to support us, it would greatly secure our future. We appreciate your help. If you are currently using an ad blocker, please consider disabling it for our site. Thank you for your understanding and support.