Although you don't need to use the word "Dear" at the beginning of a business email, the email should start with a salutaton of Mr., Ms., or Dr. to show it's a business and not a personal message.

The closing paragraph should provide the opportunity for the recipient to reply with questions if necessary and should include a positive comment to keep the lines of communication open. 

Some people are protective of their privacy and don't want their email address listed.

The word "Hi" in the subject line suggests an informal message that is not important.

By providing your name and contact information, the recipient will have that information readily available and will know how to contact you.

If the subject line contains action-oriented words that are specific and state a purpose, the recipient is more likely to read the message in a timely manner. 

Although business emails are less formal than business letters, they are not personal emails and should remain professional without text abbreviations, icons, or colored print.

An effective, professional email includes specific information. When writing an email, read it twice to check for any typos or misspelled words.

Verifying the address ensures the right person will receive the email.

Using all capital letters gives the impression the writer is shouting or angry about something.

The opening salutation should be a business greeting but should not use the word "Dear" because it is not a formal business letter.

It is a good practice to alert the recipient that there is an attachment and how many files are attached. A pdf is the preferred type of file to attach.