Until recently I have been using FTP to send small incremental backup files to a cloud storage provider (DriveHQ), but recently the service has altered its terms and conditions so I expect not to be able to use the service in the future. In response to this I've been trying other similar services, but with little success. As an alternative I'm thinking it might be possible to get the same effect by sending the files as attachments to emails sent to a web mail provider, say Yahoo or Google, from the command line. Is it possible at all? If it is possible can I use the Google mail (Gmail) SMTP system to replace an internal mail system? Advice please.