E-mail policies should

explain the cost of the servers and hardware that make e-mailing possible
publish the e-mail addresses of every employee and company customer stored on the e-mail server
record and then publish the number of e-mails sent each day by employees
clearly state that all company e-mails remain the property of the company and do not have any privacy protection

The correct answer is letter "D": clearly state that all company e-mails remain the property of the company and do not have any privacy protection.

Explanation:

Establishing a well-defined set of rules on e-mails use within a company may help to reduce the number of workers using corporate e-mail for personal uses. For that purpose, it must be stated that the e-mail and all messages coming in and going out from it is part of the company's property, so even if each employee may have their own corporate e-mail it does not imply that their account could be subject of an audit without prior notice.