Where a U.S. District Court erred in requiring that unnamed members of a class also demonstrate personal jurisdiction for a class action to proceed.The 7th U.S. Circuit Court of Appeals reversed a decision by U.S. District Judge Virginia M. Kendall.Florence Mussat, an Illinois physician doing business through a professional services corporation received two unsolicited faxes from IQVIA, a Delaware corporation with its headquarters in Pennsylvania.The faxes failed to include the opt-out notice required by federal statute …