Federal Express will discontinue its ZapMail facsimile service in mid-November 1986 after investing more than $340 million in the program. The decision was made because the service remained unprofitable after two full years of operation. The company's president said the technology met every expectation, and customers were pleased, but there just were not enough customers. only 16,000 ZapMail orders were handled daily, as against more than 250,000 Overnight Letters. Federal Express had hoped to convert more than 20 percent of the Overnight Letter business to telefacsimile. Federal Express will offer the ZapMailers, specially built Nippon Electric Company (NEC) facsimile machines, to its customers at attractive prices.