Todd A. Jacobs writes: > On Sun, Nov 12, 2006 at 06:03:07PM -0800, Meredith L. Patterson wrote: > > > FWIW, this could use the Javascript version of hashcash and keep the > > generation costs on the user's machine. I know basically nothing about > > squirrelmail, but if it's all PHP it shouldn't be too hard to have the > > generated pages include some Javascript. > > This would be an excellent way to do it, IMHO. As long as the plugin > fails gracefully if the client doesn't have Javascript (e.g. sending the > mail with no hashcash header instead of dying horribly) I think this > would solve most objections to integrating it in outbound webmail. btw, recent changes in Firefox may cause trouble for JS hashcash stamp generation -- it now imposes a CPU-time limit on javascript execution, and pops up a warning dialog if that is exceeded. I think the recommended way to avoid it is to use a setTimeout() timer instead of busy-looping. --j. (occasional Greasemonkey hacker)