WASHINGTON — The State Department on Monday released the last set of emails from the 30,000 messages on Hillary Clinton’s private computer server, including an email about North Korea that remains a point of dispute between the department and one of the nation’s spy agencies over the secrecy of information that passed through the server.
That email — written on July 3, 2009, after a North Korean ballistic missile test — was one of four that prompted intensified scrutiny of the emails for classified information and a referral last year to the F.B.I. for a review of the handling of classified information by Mrs. Clinton, her aides and other State Department officials while she was secretary of state.
It was released as part of a chain of five replies and forwards on Monday with portions blocked out on the grounds that they contained information now classified “secret,” though not “top secret,” the higher classification that the spy agency, the National Geospatial-Intelligence Agency, had cited last summer.
“The original assessment was not correct, and the document does not contain top secret information,” a State Department spokesman, John Kirby, said. He added that the department had agreed to classify some of it “provisionally” pending further review, an indication that the dispute over the contents had not yet been resolved.
A spokesman for Mrs. Clinton’s presidential campaign, Brian Fallon, said the “ongoing disagreement” about the North Korean test “means that the intelligence community’s inspector general was wrong in his belief that this email was ‘top secret.’ ”
Mrs. Clinton and her aides have said that the intelligence agencies are overzealously classifying information, and in this case the State Department agreed. The designation of “secret” nevertheless added to the list of emails that the department has released only after removing information that is now considered sensitive on national security grounds.
Among the final 1,723 emails released on Monday were 23 that the department upgraded to “secret,” bringing the total classified as such to 65. Another 2,028 have had portions blocked out, or redacted, because the information is now “confidential.”
Of the four emails that prompted the referral to the F.B.I., only one has now been classified as “top secret.” It was among 22 emails that the State Department — at the demand of the C.I.A. — said it would not disclose, even in part, because they contained some of the nation’s most closely guarded secrets.