I have this weird way of talking to my professors online that’s a mix of formal and informal.
Exhibit A: My email to a teacher regarding a paper that was overdue.
the subject line “Late paper :(((( Here it”
The actual message: “Once again, my earnest apologies for the lateness of my paper. It will not happen again. I was unsure whether or not to email it to you or submit it through the online homework website since it is late, but when I had talked to you on Friday, the terminology used was email, so here it is, attached. Let me know if this is acceptable or if I need to go through and turn in it via the class document submission. Thank you.”