Would it be possible to automatically alert the creator of a task when whoever he assigned it to completes it (or maybe when there's been any status changes at all)?
My bad. I'm sorry. This was a classic PBKC error (Problem Between Keyboard and Chair). My boss makes tasks for me, and he asked me if he could have email notifications of when I finish, so I assumed he wasn't getting them. Turns out, he was already getting them, just not reading them cause they weren't from my email address.
The situation has been rectified, thanks for your quick response!