how write professional email?

Use a clear and concise subject line that accurately reflects the content of the email.
Address the recipient by name, if possible.
Use a professional salutation, such as "Dear [Name],"
Use a professional and courteous tone throughout the email.
Clearly state the purpose of the email in the opening sentence.
Use bullet points or numbered lists to organize information, if applicable.
Use a closing such as "Sincerely" or "Best regards" followed by your name and contact information.
Use proper grammar, spelling and punctuation.
If needed, Use a signature with your name, title, and contact information.
Proofread the email before sending it.