Make One Point per Email
One of the advantages of email compared with traditional letters is that it doesn't cost any more to send several emails than it does to send one. So, if you need to communicate with someone about a number of different things, consider writing a separate email on each subject. That way, your correspondent can reply to each one individually and in the appropriate time frame. Each individual email should be clear and concise, with the purpose of the message detailed in the very first paragraph. Sentences should be kept short and to the point.