Abstract: Method for the automatic production of documents, where each single document is intended for communication from a sender to one of a multiplicity of recipients and is built up from at least one module, each module including at least one of a variable field and a static field, at least one module including a variable field, one or several, interconnected computers including a digitally stored sender database including a post for each possible sender; a digitally stored recipient database including a post for each possible recipient; a digitally stored content database including at least one module and at least one field; a digitally stored rule database including at least one rule which at least indicates a part of the contents of the finished document based upon a certain combination of, and information included in, a sender post and a recipient post, respectively; a document assembly unit, which produces a certain document for a certain combination of a sender post and a recipient post based upon the rules;