Immediately Block 100% of spam from your inbox. Uses whitelist, challenge-response and preview. Keeps email born viruses, spyware and malware on the server where they can do you no harm. Has a spam-free channel nobody else offers. Any UseBestMail equipped user can communicate with any other in a spam-free channel. All messages transmitted in this manner are certified when sent and validated when received. A spam-free channel server certifies and validates the mail without actually handling it, so all email is transmitted securely and confidentially through normal email infrastructure. Spammers can't use this channel. Installs automatically with Outlook, Outlook Express, Netscape, Eudora, Pegasus plus easy manual install on all other windows email clients. 30-Day free full-feature trial. UseBestMail is supported personally by the author. An eBay edition designed for eBay buyers and sellers is available. Enterprise server level SMTP module to support the spam-free channel is also available. Inquire.