A former State Department staffer who maintained Hillary Clinton’s private server, Bryan Pagliano, has reportedly been granted immunity by the Justice Department. Clinton paid Pagliano, who was the IT director of her 2008 presidential campaign, to set up the server in the Clintons’ residence in 2009, according to the Washington Post.

The immunity means that Pagliano will cooperate with the FBI to help it determine whether Clinton mishandled sensitive government information, according to the Post. In September, while appearing before a congressional committee on the case, he invoked the Fifth Amendment against self-incrimination.

In a statement to the Post, a Clinton campaign spokesperson said the campaign is “pleased” Pagliano has agreed to cooperate with the investigation.

The State Department has been releasing thousands of pages of Clinton’s emails since May, redacting some and, at times, all of the information in the emails.

The email investigation—which many Republicans have invoked as a looming possibility for an indictment—has been overseen by FBI counterintelligence officials and the Justice Department. While the groups have not confirmed the scope of the investigation, they have said they plan to wrap up the case expeditiously so it doesn’t interfere with the general election, NPR reported.

Fortune has reached out to the Clinton campaign and the DOJ and will update this story if they respond.