Thanks for the reply.
I am still a Virgin Media customer however the email address isn't listed under the emails on my current account.
Mailtester is giving me the following result:
E-mail address does not exist on this server
I don't actually need anything that was on the account prior (I doubt there would be much on there anyway) but the address is linked to an old PlayStation Network account I'm trying to regain access to so I am unable to receive the password recovery email without it. But I can no lkonger make an email with this address extension.