Greenblum & Bernstein, P.L.C.
Communication apparatus with relay function and relay method
 Two kinds of mail addresses, one for reception and the other for a relay, are stored beforehand. A relay is permitted only if the mail address of the received E-mail data is a relay mail address. A password name is deleted from the mail address of the received E-mail whose relay is permitted. Said mail address whose password name has been deleted is used as part of header information and transmitted to a destination terminal together with data. 
Matsushita Graphic Communication Systems, Inc.
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Kiyoshi Kumi
Toyoda Okada