Attachment Preview
Attachment Preview allows administrators to review supported email attachments directly from the email investigation view, without downloading the file locally or downloading the complete EML file for external inspection.
If Attachment Preview is unavailable, see When Attachment Preview is Unavailable.
Notes and Limitations
- Legacy Microsoft Office OLE2 formats can fail to render in the preview.
- Image preview applies only to image files added as email attachments.
- Images embedded in the email body, such as logos, signatures, or tracking images, are not displayed as attachment previews.
- Attachment Preview availability may depend on file integrity, size, encryption, password protection, or malformed content.
Supported File Types
| File Type | Preview Support |
|---|---|
| Supported | |
| Microsoft Office files | Supported for Word, Excel, and PowerPoint |
| Text files | Supported for TXT, JSON, CSV, and XML |
| HTML files | Supported |
| Images | Supported PNG, JPEG, and GIF |
| Embedded emails |
|
When Attachment Preview is Unavailable
If Attachment Preview is unavailable, administrators can continue the investigation with the available email metadata, detection reasons, verdicts, and file details.
If deeper analysis is required, download the EML file and inspect it in a secure isolated analysis environment, according to the organization's security procedures.