You are only able to access the Document Library while working within an email. You are given the option to delete documents one by one.

To delete a document, follow these steps:

1. Click on the Edit icon for the section you are working in.
2. Click on the Document link from the left side of your screen.
3. Click on the Delete File icon for the particular document you want to delete.
4. Click the Close button.
5. Click the Save button once all edits are complete in the block.
6. Be sure to save the email once you are finished.

Note: This process is not reversible. Please be sure before deleting any document that you will not need it in the future. Documents that are deleted will no longer open from emails they have been linked to.