The company says it would have to invade the privacy of customers to stop such deliveries.
By contrast, UPS Inc. paid $40 million last year to resolve similar allegations and vowed to overhaul its procedures and work with investigators to detect suspicious activity.
The contrasting responses to the decade-long federal probe of the prescription drug black market underscore the difficulty shippers have in determining how far to go to uncover illicit online pharmacies among their customers and to alert the government.
Wall Street analysts, legal experts, anti-drug crusaders and the companies themselves are split on the issue.
© 2018 Cox Media Group.