To write an effective email, especially a formal or professional one, follow these key steps:

• Start with a clear and concise subject line that summarizes the purpose of the email.
• Use an appropriate greeting, such as "Dear [Name]" for formal emails or "Hello [Name]" for less formal but still professional correspondence.
• Keep the email body focused and concise, stating your purpose clearly and providing any necessary details without overwhelming the reader.
• Use polite, respectful language and avoid slang, emojis, or overly casual expressions.
• End with a professional closing phrase (e.g., "Sincerely," "Best regards,") followed by your full name and contact information as part of your signature.
• Proofread your email before sending to ensure correct grammar, tone, and clarity.

Structure example for a formal email:

1. Subject Line: Briefly describe the email’s topic.
2. Greeting: Politely address the recipient.
3. Opening Sentence: State the purpose of your email.
4. Body: Provide relevant information or requests.
5. Closing: Include a courteous sign-off.
6. Signature: Your full name, title, and contact details.

Avoid common mistakes like vague subject lines, skipping greetings, using informal language, and failing to proofread. This guidance applies whether emailing a company, a colleague, or any professional contact to ensure your email is clear, respectful, and effective.