how to make and send an e mail

I am reminding of the mail protocol we should follow, so that you take care without fail in all future mails,  any mail without these is not acceptable

1. always mark a copy to one backup mail id

2. mention

a)subject

and b)reference on the top

3. mention the purpose of your mail

4. type out the body of your message

5. list out the attached files if any in the mail itself 

6. anticipate any question the receiver may ask ,and try to cover that also in your mail

7. request the receiver,  for the action you want them to take based on your mail

request for an acknowledgement 
If you don't get an acknowledgement in one working day .resend the message, ask for reply