Job ID for fax forwarding

The present invention relates to Facsimile (Fax) services, and more particularly to a technique for confirming whether a Fax document has been delivered from a Fax forwarding service to the intended recipient. A Fax system includes a sending fax machine, an intermediate fax machine operated by a fax forwarding service, and one or more receiving fax machines. A Job ID is generated to identify a fax message. The sending fax machine sends the fax message (e.g., a document) to the intermediate fax machine, and outputs a transmission report. The transmission report lists the Job ID. The fax message is forwarded to one or more intended recipients. The fax forwarding service provides the sender with a status report listing the Job ID and indicating whether the fax message was successfully forwarded.