An inter-office memorandum is simply a general letter written by an employer and sent to all of his/her employees. An inter-office memoranda is always circulated within an organization or company and is not normally made public to outsiders. For example, when United Airlines decided to eliminate free snacks on all domestic flights and also cut free meals on flights from Washington DC to destinations in Europe, they sent an inter-office memoranda to flight attendants and other employers. This was then later leaked to the media.
