what is the correct way to start a professional email? what is the correct way to start a professional email Hey , what is the correct why to start a office email? Dear or Hi ?? If I tell 'dear' will it give a wrong impression?

office emails Is it not professional to use smiley faces when writing office emails??

what is the correct way to start a professional email Hey , what is the correct why to start a office email? Dear or Hi ?? If I tell 'dear' will it give a wrong impression??