blind copy

noun

1. a copy of a letter or the like, the original of which bears no evidence that the copy was sent to some other person.

Example Sentences

One of his "tactics", Mr McGuinness said, was to email his alleged victims and blind copy in their colleagues.

From BBC

Career department officials then receive a blind copy of the average weighted scores and divide them into tiers, with the top scores being closer to 100.

From Reuters

But instead of using the blind copy field, they used the regular copy all one, which meant that recipients could see each other's email addresses.

From BBC

In an emailed response to questions from a Post reporter about the missing file, Williams sent a blind copy of the exchange to Michael Bennett, chairman of the D.C.

From Washington Post

Did Beauregard cross an ethical line with that blind copy?

From Seattle Times