The discovery alarmed some advisers to President Donald Trump, who feared that his daughter's practices bore similarities to those of Clinton, who used as personal email server while secretary of state during the Obama administration.
Numerous emails were in violation of public records rules, the paper reported.
But on Wednesday, the White House adviser said there "really is no equivalency" between her private email use and Hill's private server, because her emails are boring and have all been archived on the White House system.
In an interview with ABC she defended the usage, saying that she wasn't sending important work emails.
She said she has no fears of legal exposure for herself, her father, or anyone her family. "But the fact is that we all have private emails and personal emails to coordinate with our family".
Trump also discussed navigating the relationship with her father as a senior staff member in his administration.
"In fact, we're instructed that if we receive an email to our personal account that could relate to government work, you simply just forward it to your government account so it can be archived", she said.
The FBI found classified information in some of the emails. President Trump has also defended her email use and last week told reporters that all of her correspondence had been preserved.
President Donald Trump hung over the 90-minute event, with the Clintons using questions on foreign policy, the 2018 midterms and climate change to slam the President before a receptive audience.
Congressional Democrats are crying foul, suggesting that they'll launch an investigation in 2019 after they take over control of the House of Representatives.
"He knows exactly where I stand on any issue", she said.
"People see it as the same", Roberts insisted. Running towards the border is heartbreaking, ' Ivanka said.
'My goal is to prevent this from happening again - not to turn this into a spectacle the way Republicans went after Hillary Clinton, ' he said.
Mr Trump harshly criticised Mrs Clinton, his 2016 Democratic presidential rival, for her use of the private email server.