Patent US 5,634,005

An automatic sending-message processing device is applied to a computer network which is connected to a plurality of computer systems via communication media and capable of effecting message switching among the plurality of computer systems by use of an electronic mail system. The processing device includes a memory for storing a rule in which a processing condition for processing mail message data and a content of a process obtained when the processing condition is satisfied, which are described according to the language specification of the mail message. The processing device further includes a control information analyzer for analyzing control information of the mail message data, an interpreter for collating the analyzed control information with the processing condition to interpret a process to be executed, a processor for executing a process on the mail message data corresponding to the process interpreted by the interpreting means, and electronic mail sender for sending a mail message consisting of the processed mail message data as electronic mail to other computer system users.