“I have nothing more to add,” said the Labour peer.
On 11 January, Mandelson told Laura Kuennsberg his friendship with Epstein had been a “most terrible mistake”.
Two days later, he gave a statement to Newsnight offering a personal apology to the victims of Epstein.
The exchanges between da Silva and Epstein appear as part of a huge document release from the US justice department running to three million pages relating to Epstein.
The emails, first reported in the Financial Times,, external were sent in September 2009, one year after Epstein pleaded guilty to soliciting prostitution from a minor.
At the time Lord Mandelson was serving as business secretary and de-facto deputy prime minister for Gordon Brown.
Mandelson told the BBC: “I was wrong to believe Epstein following his conviction and to continue my association with him afterwards. I apologise unequivocally for doing so to the women and girls who suffered.
“I was never culpable or complicit in his crimes. Like everyone else I learned the actual truth about him after his death.
“But his victims did know what he was doing, their voices were not heard and I am sorry I was amongst those who believed him over them.”
There is no suggestion Da Silva, who married Lord Mandelson in 2023, was involved in any wrongdoing.
In December 2024, Lord Mandelson was appointed as the UK’s ambassador to the US but was sacked less than a year later, when it emerged he had sent supportive messages to Epstein following the conviction.
No 10 had known about Lord Mandelson’s friendship with Epstein when the ambassadorial appointment was made but said new information revealed the “depth and extent” of the relationship leading to his dismissal.