FairUCE

A spam filter that stops spam by verifying sender identity instead of filtering content.

Date Posted: November 30, 2004

Overview Requirements Download FAQs Forum Reviews 1. Isn't this just another challenge/response system? 2. Other anti-spam technologies work well. Why should I switch? 3. Will it run on Windows®, or with QMail, or with Sendmail, etc.? 4. Is it fast? 5. Don't all those challenges take up unnecessary bandwidth? 1. Isn't this just another challenge/response system? No. Challenge/response (C/R) systems challenge everybody; FairUCE sends a challenge only when the mail appears to be spoofed. Back to top 2. Other anti-spam technologies work well. Why should I switch? FairUCE eliminates any need for a "probable spam" folder, as well as the necessity of keeping up with the latest version of antispam software. Back to top 3. Will it run on Windows®, or with QMail, or with Sendmail, etc.? No, the current release does not. Back to top 4. Is it fast? No real performance testing has been done, but speed is expected. The code basically consists of a few if/then statements and some DNS look-ups (which are cached in memory as well as on the DNS server). The mail server will probably bog down before FairUCE does. Back to top 5. Don't all those challenges take up unnecessary bandwidth? A little bit, but it takes the server much less time to send out a small challenge than it does for the user to look at it in the spam folder, no matter how fast he presses the delete key. Legitimate senders know immediately that a user hasn't received their email, and they can click a button to have it delivered. Meanwhile, the emails sit in the queue for only an hour if they can't be delivered. Back to top