Hmmm. Silence. Maybe Virgin Media doesn't have any customers left? The message that can't be delivered to Virgin's MX servers is a follow-up to a (successful) previous circulation about the death of a member, and as it gives the details of the funeral arrangements, our inability to make contact with anyone who is a Virgin Media customer means that it looks like none of them will be present at the funeral.
However, as messages can be delivered successfully and almost instantly to the 1,400+ other members, our contingency plan is to send another mailshot out, explaining to everyone what the problem is, and asking them to contact any other members they know that have a virginmedia.com, virgin.net, ntlworld.com, or blueyonder.co.uk e-mail address, to let them know what is happening.
It kind of advertises what many people on this site are already claiming, i.e. that Virgin is a thoroughly unreliable and incompetent network provider that should be avoided like the plague, but there we are... it is what it is.
