So, I’ve been noticing that I get many emails from students that wouldn’t be acceptable to most professors (hey prof, wuzzup?). I’m not so particular about how you address me, as long as it’s respectful and clear, but many people are and will judge you accordingly. They will think that your inattention to Standard English conventions are a sign of either poor education or a lack of respect.
With that said, my former professor and thesis adviser from Montclair State University, Dr. Lee Behlman, wrote a fantastic guide on how to email professors. I recommend that you all give it a read. It’s barely a page long and mostly brief examples.
Give this a read: General Tips on Writing to Professors by Lee Behlman