Hillary Clinton's presidential campaign attempted to downplay the significance of a batch of private emails published by the State Department Tuesday by characterizing them as "light" and "funny" messages of little import.

But the roughly 3,000 pages of emails that Clinton deemed fit to release after screening the records for anything that could return to haunt her shed new light on Clinton's conduct in office.

Here are seven insights contained in the new emails.

Hillary sent emails on public domain

Questions about the security of Clinton's private "homebrew" server have swirled amid concerns that the sensitive (and in some cases, subsequently classified) information in her "clintonemail.com" communications could have been vulnerable to cyber attacks.

But the new records indicate she used a pair of email accounts that were not hosted on the clintonemail.com domain and were instead linked to public websites.

The addresses — hr15@mycingular.blackberry.net and hr15@att.blackberry.net — raise further questions as to the level of protection provided to her official communications given the fact that accounts on public web hosts typically employ the most basic levels of security.

Clinton reportedly did not use a government-issued Blackberry phone and instead sent the emails on her personal device.

Clinton fixated on media spin

The emails sent by Clinton and top State aides during her first year as secretary focused heavily on the media's perception of Clinton.

If the roughly 3,000 pages of emails are to be regarded as a complete record of Clinton's first months at the State Department — an assertion cast into doubt by recent admissions that she selectively edited the emails she gave the agency — then the documents suggest much of Clinton's time and energy was devoted to shaping her image in the press.

Aides pored over news clippings, attempted to strong-arm journalists who wrote unflattering things about their boss and debated how to frame policies for the media, emails show.

Efforts to monitor and maintain a clean media profile consumed at least as much time as actual State Department business, the documents suggest, despite Clinton's notoriously frosty relationship with reporters on the campaign trail.

Cheryl Mills, Clinton's chief of staff, often forwarded Clinton praise for her media interviews from people inside and outside the State Department, but held back criticisms.

In two notable instances, Clinton's aides seemingly persuaded prominent journalists to alter stories that were critical of the secretary.

Deliberations over articles, press statements and how to spin policies dominated more of the newly published emails than actual discussions of diplomacy, raising questions as to Clinton's priorities while she served as secretary of state.

What Russian reset?

While 2009 was supposedly the year Clinton was tasked to do the heavy lifting in a much-vaunted "reset" in Russian relations, few records mentioned the country or its leaders.

A search for Vladimir "Putin," the president of Russia, in the State Department's cache of Clinton emails from 2009 turns up four messages. A search for Sergey "Lavrov," the Russian foreign minister, returns barely more than a dozen (many of them duplicates).

Russian officials were rarely included on the intermittent schedules contained in the emails.

The scarce documentation of what was considered Clinton's top diplomatic priority during her first year as secretary raises further questions as to what may have been withheld from the records she submitted to State.

Hillary pulled favors for foundation donors

Clinton forwarded requests from executives at top Clinton Foundation donors to her aides and attempted to help those corporations skirt State Department channels.

For example, she helped a Blackstone Group executive pursue a visa and relayed concerns about export regulations that were "interfering" with the "sales" of Honeywell to her aides.

Both firms were Clinton Foundation donors.

The email exchanges mark the first hard evidence that suggests Clinton may have used her diplomatic clout to benefit companies that were friendly to her and her family's charity.

Clinton supporters have attempted to dismiss allegations of quid pro quo as unfounded speculation.

In other memos, Clinton arranged meetings with executives who were openly promoting their commercial agendas in countries in the State Department's diplomatic portfolio.

Blumenthal was major force behind the scenes

The new records indicate Clinton confidante Sidney Blumenthal's advisory role went far beyond the controversial intelligence memos he prepared for Clinton about Libya.

In fact, the emails suggest Blumenthal performed the duties of a full-time State Department staffer, despite then being on the payroll of the Clinton Foundation.

Although Blumenthal was banned from the State Department by Obama aides, Blumenthal, advised Clinton on the content of her speeches, on political developments in a number of countries and even on how her policies were playing in the international press.

Clinton has defended her reliance on Blumenthal to provide informal Libya intelligence by claiming she was simply accepting "unsolicited" advice from an "old friend."

Hillary kept her fundraising game sharp

Clinton and her aides tapped the same network of corporate donors that supports the Clinton Foundation to fund the U.S. pavilion at the 2010 World's Fair in Shanghai, a personal priority for the secretary.

Pfizer, Chevron, Boeing and Honeywell were among the foundation donors who gave millions to the project.

"The Secretary called us in last Friday and said that she was game for doing some additional calls," wrote Kris Balderston, special representative for global partnerships, in a memo to Mills in June laying out a strategy for soliciting donations from more than a dozen major companies.

His email suggested Clinton was personally entreating donors — many of them who were actively involved in her husband's charity — to give money to a State Department project.

In an April email, another agency staffer, Capricia Marshall, mentioned an email fundraiser that had "put a serious hole" in Clinton's "debt", presumably accrued during her failed presidential bid.

White House aides knew about private email from the start

Rahm Emmanuel, President Obama's former chief of staff, and David Axelrod, a former senior adviser to the president, both requested and received Clinton's private email address in the early months of Clinton's tenure.

Axelrod had denied knowledge of Clinton's private email use just weeks before the publication of records showing he and Clinton had exchanged messages using her private account. He now says he meant he was unaware she used the private account exclusively.

The White House has remained mostly silent on Clinton's private email use since the House Select Committee on Benghazi revealed the arrangement in March.