Free Spam Blocker

This Free Spam Blocker is easy to install and will save you a ton of money! It saved me $13,000 and a lot of frustration!

If you are looking for a free spam blocker for your business, you are on the right page! I am going to save you thousands of dollars by showing you how to block spam free of charge!

I am responsible for our company email server of 300 users with a limited budget, so limited that spam was an issue users had to deal with on their own. That was until an employee received a very sexually explicit email promoting good health.

No Spam Filter equals Lawsuit

She was extremely upset and it didn’t take much for me to see a ‘hostile work environment’ complaint in the near future if I didn’t take action and install some type of spam blocker.

I began to research spam filtering software and put four major products to the test, you have probably heard of them all. One email filter beat them all and offered all the features I needed; black list updates, software updates, support, auto white list, antivirus, and more – it was exactly the email filter I had been looking for!

The trial period on this on product ran out and I was ready to take the plunge and spend necessary funds to finally stop the growing onslaught of junk mail. Shockingly the price came back at $12,975 and that does not include the $7,900 reoccurring yearly fee for the email filter maintenance, anti-spam and the antivirus subscription service!

What happen was that the spam blocker had been broken up into modules with each module having a cost of its own. What they didn’t tell me was that the trial version included all these modules, so it appeared that I was testing one product for the base price!

That really irked me! I spent countless nights and weekends testing spam filters only to find out that there was a hidden gotcha!

Spam Blocker

I set out to find a free spam blocker that was commercial grade, free of course and no tricks. I actually found it, and I was so impressed, that I had to write this article on it. The free spam blocker, the software that stood up to the commercial products is called ASSP Spam Filter.

Needless to say, this spam filter ended up saving me $13,000 and saved me from a lot of complaints. If you are in IT, then you know all too well the frustration that users have with spam and they expect you to have the answer.

Now you have an answer to blocking spam, ASSP. This free spam blocker is not 100% accurate, but it’s accurate enough to put an end to the complaints. There is no reason not to try this, it’s completely free, open source and can be installed on another server (basic computer is all that’s needed) and will not interrupt your current email server.

Spam Blocking Features

• Easy browser-based spam blocking setup (optional)
• Uses your existing message transport and existing SMTP server
• Works with Sendmail, qmail, Postfix, Imail, Exchange, Courier, Mercury, Lotus Notes, and all other standard SMTP servers
• Runs on Linux, Unix, Windows, OS X, OS/2, and more
• Automatically customizes to your site’s unique email profile
• Automatic whitelist — noone you email will ever be blocked
• Senders receive immediate notification if mail is blocked but no erroneous bounces are ever generated
• Redlist keeps an address off the whitelist
• No-processing addresses pass through
• Makes use of honeypot type spambucket addresses to automatically recognize spam and update your spam database
• Bayesian filter intelligently classifies email into spam and non-spam
• Supports additional site-defined regular expressions to identify spam or non-spam email
• Can optionally block all non-whitelisted email (for anti-spam zelots)
• Mime encoded and other camouflaged spam is also recognized
• Automatically maintains the spam and non-spam databases
• Accepts whitelist submissions and spam error reports by authorized email
• Optionally rejects executable attachments from non-whitelisted (or all) addresses
• Free spam blocker — Licensed under the GPL
• Practically no maintenance required
• This free spam blocker has an active user community and email list that supports questions
• Source code included if you need to customize your installation of the free spam blocker
• Runs as a service in Windows XP / Vista
• Optionally blocks no mail but adds an email header and/or updates the message subject
• Optionally uses community-based spam statistics to identify hosts that are likely to send spam or non-spam mail
• In *nix environments can switch to non-root user. Also supports chroot jail
• Individual users can be configured to receive all mail
• Shows detailed analysis of spam rating process for specific messages
• Option to forward a copy of every rejected mail to an address
• No perl modules to install — runs complete “out of the box"
• Can block spam-bombs (when spammers forge your domain in the from field)
• Keeps junk email statistics for your site
• Detailed up-to-date spam filtering documentation
• Can listen on more than one smtp port

There are many quality ‘open source’ products out there and this is one of them; a free spam blocker that commercial filters would rather you not know about!