I don't know much about how servers are organised.
In order to avoid moving a large zip file more than necessary, I want to find out the answer to the following question :
"A customer sends a file xyz.zip as an attachment to an email. The email goes into a mail box on the domain abc.com. The application powering the domain has a folder \Holder.
Can xyz.zip be moved from the mailbox into \Holder ?"
It seems to me that the data is all on the server in different electronic boxes; it might be possible to move it.