To define your email's tone and style, consider your brand identity and your target audience. Ask yourself:
What is the personality of my brand? Is it professional, quirky, or relaxed? Who is my audience? Are they young professionals, corporate executives, or college students? What is the purpose of the email? Is it to inform, persuade, or entertain?
Once you have these answers, tailor your tone and style to fit both your brand and your audience.