With a few e-mails, the problem was solved. A friendly Malaysian importer would buy the parts from a company in Linden, N.J., and forward them to Iran. All that was left was coming up with a fake name for the invoice. Perhaps a Malaysian engineering school? “Of course, you can use any other company as end-user that you think is better than this,” the Iranian businessman, Ahmad Rahzad, wrote in an e-mail dated March 8, 2007.