having a limit severely hampers productivity IMHO. I mean what kind of a problem could somebody sending a 100 meg attachment really occur?
ouch, 100 M mailbox?
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.