I receive masses of mail apparently from 'MAILER-DAEMON', 'Postmaster' and 'Mail Delivery' supposefly about mail that has not or cannot be delivered. Fortunately filtering systems get rid of most of them, but does anyone know who these persistent people are or what they are tryhing to achieve?
Thanks Trim. An interesting link and quite a lot of exploring to be done. I had wondered if these emails were harmful or perhaps carried viruses. It seems I shall just have to go on ignoring them. Apols. for the typing error.