Analysis of URLs in file attachments
URLs in supported attachments can be scanned and classified by the on-premises Email Security system according to the configured filter options. Classifiable URLs in attachments triggered by the filter settings are handled like any other email content by the URL analysis filter action. A file attachment that triggers the URL filter is classified as a URL analysis message. Only the first 50KB of content in the email attachment is scanned. Functionality is not available for the Email Security Hybrid module. URLs can be extracted and analyzed from within the following file types:
- .doc
- .docm
- .docx
- .ppt
- .pptx
- .rtf
- .txt
- .xls
- .xlsm
- .xlsx