Outclass integrates POPFile's classification engine into Outlook.
Using Bayesian statistics from a database of existing spam, no initial training period is necessary.
Unfortunately you will have to rely on someone else's definition of spam in the beginning so you may see some false positives right out of the box.
In addition to Bayesian filtering, SpamAid uses “blacklists" and “whitelists" to streamline spam filtering. It also uses a system of “phrase filters" that you can customize.
SpamBayes Outlook Addin
The SpamBayes Outlook Addin leverages the proven track record of Bayesian spam filtering technology. Pros:
On the plus side, SpamCatcher combines a content-scoring filters with a user network that is providing feedback on their spam. It can be used as a POP proxy so you can use it with most email clients, not just Outlook.
On the negative side, you can't easily customize the filters are not customizable. This might be the reason why it returns a significant number of false positives (and negatives). Not only that: you can't submit corrections to the user network with SpamCatcher.
Trend Micro Anti-Spam Pilot
Anti-Spam Pilot uses heuristic filters to spot and isolate spam. This is a somewhat older technology where you filter the email by looking for patterns that might match a collection of known spam. For example, the anti spam software might find certain words, phrases, punctuation, that give it a clue that this is spam in your email box. It then provides a score for the email. If the score is too high, the anti spam software will isolate the spam into a separate folder or do anything else you specify.
This approach is different than a Bayesian filter that actually learns as you go. The upside of this is that you don't have to spend a lot of time “training" the filter. The downside is that it doesn't detect as much spam as some other packages using Bayesian technology.
You do have the option of reporting missed spam (false negatives) and the rare spam emails that escape through the filter (false positives). You can also keep a list of spammers (a blacklist) and a list of legitimate emailers (a whitelist) as a way to increase Anti-Spam Pilot's overall effectiveness.
Ara Rubyan is experienced in training design and delivery and has been developing web based training for more than 10 years. His background in training coupled with his IT knowledge help him to ensure the seamless development of product user training.
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