Email etiquette includes using a polite tone ... Direct language accuses the instructor of misrecording a grade and does not clarify what the student would like the instructor to do. While "thank you" ...

Email etiquette is the collection of polite habits ... It is not considered rude in emails to skip the “thank you,” but you ...

Your palms are finally dry, you've loosened your (real or metaphorical) tie, and you've just wrapped up what felt like a ...