Advanced Threat Protection: Previewing an Attachment


This article provides instructions on how to view an attachment during scanning and describes attachment scanning using Microsoft Advanced Threat Protection (ATP). 



Microsoft Advanced Threat Protection (ATP) Safe Attachments  protects against unknown malware and viruses and provides zero-day protection to safeguard your messaging system. All messages and attachments that don't have a known virus/malware signature are routed to a special environment where ATP uses a variety of machine learning and analysis techniques to detect malicious intent. If no suspicious activity is detected, the message is released for delivery to the mailbox.



Task: To view your quarantine list.



Step 1 - Open a web browser and navigate to 

Note: If this link does not work from the Outlook client, try a private browser or a new browser window.



A list of quarantined email messages is displayed.

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Task: To view an attachment during the scan.

If you receive a message with an attachment, the attachment can still be viewed before the ATP Scan has completed. The scan should only take a few moments.



Step 1 - In the email message, select Preview under the attachment.











Step 1 - Right-click and select Preview from the menu.













The attachment opens in a preview window.

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Further Readings

Advanced Threat Protection: Confirming Safe Links is Enabled


Need additional help?

For additional Training please visit the Teaching & Learning Technologies Training site

To submit a support request, please fill out the Microsoft 365 Support webform with as much detail as possible, or contact the Technology Help Desk team on your local campus. For password issues you must call or visit the Help Desk in person.


Article ID: 2202
Thu 3/26/20 12:51 PM
Wed 12/21/22 12:55 PM
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