Virgin Media customers received hundreds of emails after a mix-up on a marketing message let recipients reply-all to everyone else. Hitting reply to the message – as hundreds inevitably did – sent the response to everyone else again. However, Virgin has stressed that the email addresses weren’t visible to other users at any point. Twitter users complained they were being “bombarded” with messages last night thanks to the “rookie error”, with some people saying others on the mailing list were hitting reply-all and sending an email to promote their own business or to raise funds for charity.