The report to be published by security firm KnujOn accuses eNom of refusing to suspend the domain names of internet pharmacies known to have forged licences, according to the Financial Times.
While most registrars have locked out thousands of rogue pharmacies, eNom has demanded court orders before disconnecting any offending sites. These court orders are difficult to obtain.
KnujOn said eNom handles registrations for 4000 bogus pharmacies, about seven times more then the next biggest supplier of illegitimate pharmacy addresses.
But eNom's parent company, Demand Media, said it takes action on all legitimate complaints made by a court order and is in compliance with internet regulator ICANN.
This story was first published by Computer Weekly