Of the dozens of intelligence memos that Sidney Blumenthal sent to Hillary Clinton while she served as secretary of state, 23 contained information classified as “Confidential” or “Secret,” a Daily Caller analysis shows.

Sending nearly two dozen sensitive emails makes Blumenthal, a former journalist and aide in the Bill Clinton White House, one of Clinton’s most prolific sharers of classified information. The Democratic presidential candidate herself sent 104 emails containing classified information, The Washington Post found.

Some of Clinton’s State Department aides, such as chief of staff Cheryl Mills and deputy chief of staff Huma Abedin, sent dozens of emails which contain now-classified information. Jake Sullivan, Clinton’s top foreign policy adviser, sent 215 now-classified messages.

But the Blumenthal memos are especially intriguing because the longtime Clinton ally did not work for the government. Instead, during the period that he sent Clinton memos, he was working for the Clinton Foundation as well as for several non-profit organizations with close ties to the Clintons. He also worked during some of that period as an editor for The Daily Beast.

Here is a complete list of Blumenthal’s classified memos and emails:

2009

June 23 email — Blumenthal forwarded Clinton a nearly entirely redacted email with subject line “N. Ireland/Shaun,” an apparent reference to Shaun Woodward, who then served as Northern Ireland’s secretary of state.