Tasked with digging into the security of Hillary’s home brewed email server, the FBI investigation into presumptive Democratic presidential nominee Hillary Clinton is expanding it’s reach.

A local CBS News affiliate reports the Denver based Platte River Networks received a visit from the FBI last week regarding former Secretary Clinton’s email.

Platte River Networks handled the Clinton’s email accounts though there’s been no public explanation as to what that entailed.

It’s been confirmed by both the intelligence community and the office of the Inspector General that classified information was transmitted through Hillary Clinton’s private email account. Also true is that Hillary Clinton deleted thousands of emails prior to turning some over to the State Department for record keeping.

Platte River Networks may have copies of emails Hillary Clinton deleted.

According to CBS News Denver:

Sources related to that visit told CBS4 Investigator Rick Sallinger the company has been asked to preserve any information related to the emails involving Bill and Hillary Clinton.

The company’s website lists awards including for being among the best Colorado businesses and places to work. But Metro State University Assistant Professor of Computer Information Systems Dr. Edgar Maldonado says there are questions about what security protocols were in place.

“I would say it’s not the best choice,” Maldonado said.

The FBI would not comment on its contact with the Denver company.

Platte River Networks is not under investigation and the FBI is only in the information gathering stage of their inquest into presidential hopeful, Hillary Clinton.

Follow Kemberlee Kaye on Twitter @kemberleekaye