Various laws may limit your options in establishing a company email policy. And you need to consider the implications of any policy for other types of activities and for employee morale.
Your policies regarding email should be consistent with company policy regarding other issues relating to privacy, use of company property, and access to employee workspaces. But there are some special features of electronic communications that you might want to take into account in formulating your policies on this new medium.
Dip into the materials below, as you feel necessary, to review the factors that bear generally on your selection of a combination of policy options.