Jared Kushner and other White House staffers have been using private email accounts as well as their official '.gov' accounts. Now, a private email account could include 'gmail' or 'hotmail', which means the server and related security are handled by heavy hitting tech firms. However, Politico [seems to] mention in passing that Kushner is on a private server [But he's not; see UPDATE]:
Presidential son-in-law and senior adviser Jared Kushner has corresponded with other administration officials about White House matters through a private email account set up during the transition last December, part of a larger pattern of Trump administration aides using personal email accounts for government business.
Kushner uses his private account alongside his official White House email account, sometimes trading emails with senior White House officials, outside advisers and others about media coverage, event planning and other subjects, according to four people familiar with the correspondence. POLITICO has seen and verified about two dozen emails.
“Mr. Kushner uses his White House email address to conduct White House business,” Abbe Lowell, a lawyer for Kushner, said in a statement Sunday. “Fewer than 100 emails from January through August were either sent to or returned by Mr. Kushner to colleagues in the White House from his personal email account. These usually forwarded news articles or political commentary and most often occurred when someone initiated the exchange by sending an email to his personal rather than his White House address.”
The original set-up doesn't sound too dastardly:
There is no indication that Kushner has shared any sensitive or classified material on his private account, or that he relies on his private email account more than his official White House account to conduct government business. Aides say he prefers to call or text over using email.
Still, Kushner and his wife, Ivanka Trump, set up their private family domain late last year before moving to Washington from New York, according to people with knowledge of events as well as publicly available internet registration records. At the time, Kushner — who served as a senior campaign adviser — was expected to be named to a White House role, while Ivanka Trump was publicly saying she didn’t plan to work in her father’s administration.
Kushner's representatives declined to detail the server or security measures on it.
People familiar with the account say it was primarily set up for Kushner’s personal communications, but he has used it to communicate with acquaintances outside the White House about matters relating to Trump and the administration, according to people who have received messages, as well as with his White House colleagues.
Well, Hillary made the same argument - she wanted to keep her personal emails off the government system. Of course, her solution - keeping all her emails off the government system - was problematic. It doesn't seem that Kushner has gone that route.
[Kushner attorney] Lowell said Kushner has adhered to government record-keeping requirements by forwarding all the emails to his account, though POLITICO could not verify that.
What does it mean? Who knows?
UPDATE: Politico sort of danced around the private server question, or else I misunderstood "Kushner's representatives declined to detail the server". In any case the NY Times has this:
A government official, who spoke on the condition of anonymity because he was not authorized to speak about Mr. Kushner’s email habits, said that unlike in the Clinton case, Mr. Kushner had not set up a private server to house the personal email account. While Mrs. Clinton used her personal account exclusively, the official said that Mr. Kushner does use his government account.