The conversation between human and AI assistant.
I have an email address like "firstname_lastname@msn.com", does it sound unserious to you?
I have a question. My email address is "firstname_lastname@msn.com". Do you think it sounds unprofessional?
Hmm, while it's not the most formal email address, it doesn't necessarily sound unprofessional. It really depends on the context and industry you work in. What field are you in?