Trevor Luxton, 22, left his job as an administrator with French bank Credit Lyonnais on Monday, following an internal investigation into abuse of its e-mail policy.

The notorious email described Mr Luxton's alleged sexual exploits with a friend's ex-girlfriend, while he was speaking to his fiancée on the telephone.

One of the messages attached to the original e-mail claimed he had denied writing the story.

Explicit

Mr Luxton was suspended on full pay by French bank Credit Lyonnais during the investigation.

If he worked at my firm, he would be sacked for that

Barry Luxton, father

A statement from the bank said: "Credit Lyonnais has accepted the resignation of Trevor Luxton, there will be no further comment."

Mr Luxton's father Barry, from West Ham, east London earlier said of the e-mail: "If he worked at my firm, he would be sacked for that."

In December 2000 Claire Swire achieved international notoriety with an explicit e-mail conversation that was forwarded on to millions of people.