Yes, I work on emails basically all day, seven days a week. I am junior counsel for hotmail dot com. So even when I am not literally emailing and I get to do some legal work it's probably about emails. For lunch today I ate two emails.
Please remember, everyone, that regulation of the legal profession is in the hands of provincial law societies and their rules DO differ in important regards. The NCA process is national. It's right there in the name. But rules about how article works, etc, are provincial.
Also, for whatever it's worth, the idea of temporary "summer" articles is very foreign to my experience in Ontario.