As the sender (originator) of a file using Secure Ad Hoc Transfer, you can authorize the recipient to upload a file that you can later retrieve. For example, you can send a document to a reviewer, then the recipient can make edits to the document and upload the edited document. When the recipient uploads the file, you receive a notification e-mail that contains the same hyperlink and login credentials that were provided to the recipient.
When you send a file using Secure Ad Hoc Transfer, on the menu, click Allow Upload.