Subject
Greeting
Introduction
Body
Signature
100

Should never be used in a subject line

What are Emojis

100

Should never be used in greeting

What is Hi and Emojis

100

Should be this type of style

Brief and straightforward

100

Should always be this

Brief and explanative 

100

Should be this

Your name and any trailing information such as company you work for, awards you may have received, and your email and phone number