Common Mistakes with Business Emails - as part of the expert series by GeoBeats. A large portion of our interaction in business days is by email. So it is important that you know some of the dynamics that create a great email and some that you might not want to use at all. Do not write your email in capitals. That is the equivalent of shouting. Be very careful of how you use your words and make it short and to the point but not so direct that it may come offensive. Be care how you choose the CC: or the carbon copy or the BCC: so that the correct people are included and others are not. Be very aware of the timeliness of this scenario and perhaps suggest that you set up a meeting after that email is received. The subject line is very important. It makes it much easier for the receiver to find it in a series of emails and strike the importance of that email and be able to move back to that to tie all the facts together.