Reminds me of the times ...
back in the late 90s when I was working in a small publishing department.
Every so often our mail server would go down because someone, normally advertising sales, had emailed a clients incoming artwork to the whole production team, rather than popping it on the server and sending a link out. Multiple copies, of, at the time, large artwork, quickly jammed up the servers. This being before email servers themselves referenced files being forwarded, rather than duplicated them.