Anti-Spam Product for PostFix Offered for Free by IBM

If you find this useful please share it!


IBM has announced that it is making it FairUCE anti-spam product available for free. “FairUCE” stands for “Fair use of Unsolicited Commercial Email”.

FairUCE is an SMTP proxy for PostFix which works as a sort of amalgamation of email authentication and challenge/ response. In theory, at least, and hopefully in practice, anyone running a PostFix installation should be able to incorporate FairUCE onto their server.

As IBM explains it:


“FairUCE tries to find a relationship between the envelope sender’s domain and the IP address of the client delivering the mail, using a series of cached DNS look-ups. For the vast majority of legitimate mail, from AOL to mailing lists to vanity domains, this is a snap. If such a relationship cannot be found, FairUCE attempts to find one by

sending a user-customizable challenge/response. This alone catches 80% of UCE and very rarely challenges legitimate mail. A future version will incorporate Sender Policy Framework (SPF) or similar sender identification systems; SPF-enabled domains will not require a challenge. Challenges are sent using a dedicated queue with a short lifetime so it does not get bogged down or interfere with legitimate mail.

(Article continues below)
Get notified of new Internet Patrol articles for free!
Or Read Internet Patrol Articles Right in Your Inbox!
as Soon as They are Published! Only $1 a Month!

Imagine being able to read full articles right in your email, or on your phone, without ever having to click through to the website unless you want to! Just $1 a month and you can cancel at any time!
Anti-Spam Product for PostFix Offered for Free by IBM

If a relationship can be found, FairUCE checks the recipient’s whitelist and blacklist, as well as the domain’s reputation, to determine whether to accept, reject, challenge on reputation, or present the user with a set of whitelist/blacklist options. A future version will use a real domain reputation system; currently this is implemented as a “whois” look-up to determine the domain’s age when it first sent mail to the recipient.”

IBM, which recently stepped out of the personal computer market, has a history of developing “for the greater good” sorts of software, and then giving it away to the public for, well, the greater good, including web, network, and development software.

IT folks interested in reading more about or downloading FairUCE should go to the FairUCE Homepage.

We know you're sick of ads on websites. But we still need to pay to keep the lights on for you. So instead of huge ads and video ads, we use smaller, plainer ads. Still, if you'd like to support the Internet Patrol but not the ads, please consider supporting us here:
Donate via Paypal
Other Amount:

No Paywall Here!
The Internet Patrol is and always has been free. We don't hide our articles behind a paywall, or restrict the number of articles you can read in a month if you don't give us money. That said, it does cost us money to run the site, so if something you read here was helpful or useful, won't you consider donating something to help keep the Internet Patrol free? Thank you!

Anti-Spam Product for PostFix Offered for Free by IBM

Get notified of new Internet Patrol articles!

If you find this useful please share it!

Leave a Reply

Your email address will not be published. Required fields are marked *