Legal Question in Employment Law in New Jersey

Re: Opening mail at a business

Postal regulations state: All mail addressed to a governmental or nongovernmental organization or to an individual by name or title at the address of the organization is delivered to the organization, as is similarly addressed mail for former officials, employees, contractors, agents, etc. If disagreement arises where any such mail should be delivered, it must be delivered under the order of the organization's president or equivalent official.

If you don't want your personal mail opened by your employer, don't send it to the company address.

See also: http://info.corbettlaw.net/lawguru.htm