State Department officials are set to release roughly 7,800 pages of Hillary Clinton's private emails Monday amid new speculation about the former secretary of state's official meeting schedule.

The email production Monday afternoon will kick off a countdown to the final two Clinton email releases, which will take place at the end of December and January respectively.

Hundreds of the official emails Clinton hosted on a private server in her home have been published in batches since May of this year.

The State Department released more than 7,000 pages of emails last month, surpassing its goal of having 51 percent of the records posted online by that time.

By the end of September, the agency had published 19,569 pages of the roughly 55,000 she turned over to the government late last year.

The email release Monday will come the same day details from Clinton's official calendar were publicized by the Associated Press, which obtained the meeting schedules through a Freedom of Information Act lawsuit. The same open records law has forced the State Department to produce Clinton's emails on a rolling basis.

Meeting schedules indicated Clinton opened her office to dozens of corporate executives who also donated to her campaign and family foundation, raising new questions about potential conflicts of interest within her diplomatic office.

Scrutiny over Clinton's private email use has softened since it first emerged in March after members of the House Select Committee on Benghazi incidentally uncovered the personal email network through its probe of the 2012 terror attack.

While critics speculated that the email controversy could sink Clinton's campaign, the former secretary of state allayed concerns to that effect when she emerged from 11 hours of testimony before the Benghazi committee last month with what many perceived as a political victory.

Even so, Clinton has struggled to explain the presence of classified material within her private emails after assuring the public that nothing she sent or received was classified.

She has since changed her story, promising instead that nothing she transmitted was marked classified at the time.

In September alone, 215 published emails were upgraded to classified. All or part of more than 600 emails released so far have been marked classified, with hundreds more expected in the batch set for publication Monday.

An FBI investigation into Clinton's email use is reportedly expanding, although the law enforcement agency has repeatedly declined to provide details about the probe.