A frequently recurring issue, especially for large files.
A solution is drop.io which allows to create file sharing up to 100 MB with a custom url in the form http://drop.io/custom. Drops have their own e-mail address and teleconferencing number. Promising as an instrument, but not an adopted tool for this team, not a tool in evaluation. Use at your discretion.
For an example, see drop.io/counterfeiting

