A Remedy For Weak Spam Filters

"You should consider a permission-based e-mail scheme like the $39.95 Choice Mail software. The software sends a message to the sender of each piece of unrecognized e-mail asking for a "registration" response before it will be delivered to you. Most spam senders use fake return addresses and won't know you replied. Outfits that do get your permission message can answer a question or two, and the software will use rules to decide whether to pass it along.Since the vast majority of desired e-mail comes from people who are on your list of addresses, this scheme doesn't insult many people. And once these folks get through the first time, you can decide whether to accept them in the future or put them in your delete queue." Source: NJ.com