One of the possibilities of the Internet that has boomed in the last few years is sharing files among users, every day of a larger size and in a quicker time.
OpenP2M is just the tool for the job, and offesr you a system of storing and sharing large files via email (known as peer to mail, or P2M). The P2M system is based on the well-known P2P protocol, but in place of using servers it uses email as a bridge between users.
OpenP2M is a P2M client developed in Java (which you need in your PC) and among its functions you can download a file from various email accounts at the same time, automatically create a downloaded files list, or half downloaded, automatic error detection (corrupted parts) etc.
How are files downloaded in P2M? Via links you find in any specialized page for this system.