I checked with my son to find out if server scanning devices are available and, if they are, why Internet Servers (ISPs) do not scan before their customers get infected mail. He works for a software development company and says that they do have such devices and have sold a lot of virus/worm scanning mail servers over the past year, mostly to small companies. He says some larger ISPs do have them but most still do not. According to him, server administrators have to make sure that their systems are secure and that many, through ignorance, don't. He thinks that over 500,000 Microsoft webservers were infected by a number of different worms recently. He goes on at length to explain questions I had asked. If anyone wants to get his complete explanation (And he gives a URL to get further info)contact me privately offline and I will forward his e-mai to you. Lilian