ouch, 100 M mailbox?
True about there are other more "computer efficient" ways of transfering files, but there is nothing faster/more productive than simply attaching a file, typing the person's name and sending. Versus trying to figure out where the person is, explaining the path, finding the correct server, making sure they have rights and god help the user if he has to transfer it to somebody outside the internal mail system. Or hounding the IT department to distribute files for weeks. When a simple e-mail is all it takes.