No preview of this item is available:

What is supposed to be seen when viewing HTML preview:

The XML content being generated when the preview link was clicked was empty.
There are no plans to address this issue by way of a patch or hotfix in earlier versions of the software at the present time. However, the issue has been addressed in the revision of the product specified at the end of this article.
Please contact your Sales representative or the Sales group for upgrade information including upgrade eligibility to the release containing the resolution for this issue.
When viewing the HTML preview of an encrypted email, the Enterprise Vault icons (download, move, delete, etc) are not available.
JIRA: CFT-3844