Outlook Unblock Attachment -

: Changes will take effect after you close and reopen the application. 3. Corporate and Exchange Environments

Cybersecurity & Messaging Team Document version: 2.0 Last reviewed: April 2026 outlook unblock attachment

Users who received a file from a trusted source but don't want to change global security settings. : Changes will take effect after you close

Microsoft Outlook includes a security feature called . This feature is designed to protect your computer from viruses and malware by preventing you from opening specific file types (such as .exe , .bat , or .js ) that have the potential to harm your system. outlook unblock attachment

Have the sender upload the file to OneDrive or SharePoint and email you a link instead of the direct file.