Seems simple enough. It gets a little more complicated when you request a program rather than a document. Then you'll have to run them through at least one converter program to put them in a form you can actually use. To decode it, you'll first have to transfer the file message into a file in your home directory. One further complication comes when you request a particularly long file.
Many Net sites can only handle so much mail at a time.
This gives the mail server the maximum size, in bytes, of each file segment. This particular size is good for UUCP sites. Internet and Bitnet sites can generally go up to 300,000. When you get all of these files in mail, transfer them to your home directory. There are a number of other mail servers.