I expect that one thing spam will accelerate is the devolution of email out of the hands of ISP's and into the hands of relatively small user collections such as families. You cannot ever hope to implement really good spam filtering at the ISP level because once you get past a few hundred users from the general public, the diversity of that community makes for a broad range of mail that people really want to get through. This makes SIMS all the more interesting as a mail server because it is ideally suited for microservers. On hardware that is otherwise laughable by today's standards, you can set up a server for a dozen users that almost never stops working and doesn't require a multidisciplinary expert to administer. -- Bill Cole