Final answer:
The IT Support Engineer sent the email to the company to inform all employees about mapping network drives on their computers. One problem with the email is that it would be more effective to send it only to those who can answer the question.
Step-by-step explanation:
The IT Support Engineer sent the email to the entire company because it is related to mapping network drives on employee computers, which is a technical task that affects all employees. The purpose of sending the email to the entire staff list is to ensure that all employees are aware of the procedure and have access to the necessary resources.
However, one problem with the email is that it would be more effective to send it only to those who can answer the question. This indicates that the email might be confusing or irrelevant to some employees who don't have the knowledge or authority to handle the task.