We've heard it all after speaking with various professors.
Student's addressing professors as "Yo Prof" or the classic "Hey :)."
The issue when incorrectly addressing your professor is that you will get a late response or no response at all. Below we will show you how to write a correct email.
"Subject Heading: Diesel and Octane Use
Hi Dr. Kennedy,
After reading chapter 6, I wanted to clarify if octane or diesel gas is best for a Honda Civic? Please refer to chapter 6, page 456, and paragraph 3.
Student Number: 1234578
Course Code: ENG 3000U
What does this email contain:
Proper Subject Heading
Proper Professional Addressing "Dr."
Detailed and concise question
Very detailed page reference
Detailed student information about yourself