Include a Concise, Direct Subject
Professional email etiquette can make or break you, and it starts with the subject. Just like addressing a letter, the subject of an email is important for several reasons. Not only is it the summary for the content of an email, it may be the key to having your email actually opened and read. If you are sending an email to a person who is likely to receive many emails per day, there is at least some chance that yours may be deleted or simply overlooked by accident. A subject that states the purpose and nature of the message is important, especially if it invites the recipient to take action.