Here are a list of do's and don'ts for writing CVs

Always start off with 'Dear' followed by Sir/Madam unless their name is known. 
Establish the purpose of the email, this is a professional email, no pleasantries needed. 
Once the main body has been typed using correct spellings and grammar, proof read the email before signing 'Kind regards' followed by your name or signature already saved in the system. Follow this guide and your emails will be perfect.