The inspector general, in a long-awaited review obtained Wednesday by The Washington Post in advance of its publication, found that Clinton’s use of private email for public business was “not an appropriate method” of preserving documents and that her practices failed to comply with department policies meant to ensure that federal record laws are followed.

The report says Clinton, who is the Democratic presidential front-runner, should have printed and saved her emails during her four years in office or surrendered her work-related correspondence immediately upon stepping down in February 2013. Instead, Clinton provided those records in December 2014, nearly two years after leaving office.