With an upload request your customers can easily send files to you. But how do you ensure that when they open the link, an email address is entered by default, so that they only have to add the files?
Suppose the link is: https://e2e.smartlockr.eu/Upload/Public/a6b8a4bb-8520-4b68-1819-323b4ec76646
Then you can add to it: ?email=demo%40exampledomain.com
The link will then look like this: https://e2e.attachingit.com/Upload/Public/a6b8a4bb-8520-4b68-1819-323b4ec76646?email=demo%40exampledomain.com