Where FTP access is restricted, a remote FTP or FTPmail service can be used to circumvent
the problem. An email containing the FTP commands to be performed is sent to a remote
FTP server, which is a mail server that parses the incoming email, executes the
FTP commands, and sends back an email with any downloaded files as an attachment.
Obviously this is less flexible than an FTP client, as it is not possible to view
directories interactively or to modify commands, and there can also be problems
with large file attachments in the response not getting through mail servers. As
most internet users these days have ready access to FTP, this procedure is no longer
in everyday use.