Send the message to the wrong person. This is a sure-fire way to destroy customer relationships. It leaves customers wondering if you can deliver on the goods or services you're promising. Believe me, it's a mistake that can ruin working relationships. Write a book.
Nobody likes long e-mail messages.
They're hard on the eyes and even harder on the attention span. Keep your notes short and sweet. Then give recipients the option of clicking on a hyperlink for further information. So, give them more information than they could possibly imagine. Somebody who's really interested in a topic will want to read everything they can possibly get their hands on.