I have a friendly, close relationship with these professors - we are research collaborators and communicate daily. Our communication scope on emails is never personal, it's strictly about research progress.
I notice that when math and physics professors send me emails that start with the greeting
such emails evoke happy feelings and enthusiasm, rather than the more formal
Is the usage of exclamation points in email greetings, in academic settings, appropriate to use, if I am not in a position of authority, e.g. I am not the professor responding to a student's email regarding research progress? For example, would saying
Hi Professor Thompson!
be considered appropriate etiquette? Or does it risk sounding unprofessional?
The goal is to sound more upbeat and to convey enthusiasm, when replying to professors.
Personally, I've never used exclamation points for email greetings in any professional settings before, but I would like to do so and match the enthusiasm of the professors.
If the culture matters, I would like to restrict this question to the United States.