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  • Last update: 5 years ago
  • Total downloads: 196
  • Operating system: WinXP, Win2003, Win2000, Win Vista, Windows 7, Windows XP X64, Windows Vista64, Windows 7 x64
  • Publisher: SurfRight B.V.
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windows default iconCaretaker Antispam Publisher's description

The constantly increasing amount of spam messages is a real problem.

The constantly increasing amount of spam messages is a real problem. Every day you have to spend precious time cleaning your inbox manually. And the problem will only get worse in the future, because sending spam is cheap and simple. With just one click on a button, a spammer can reach hundreds of thousands of addresses. And no matter how low the response rate is, there are always people who will respond to an offer.

Caretaker Antispam combines a number of methods to distinguish spam messages from genuine messages. Each message receives a score by looking at certain features, for example the sender, contents, the make-up, etc. Based on this score, Caretaker Antispam decides if a message is to be delivered to your inbox or your spam folder

Advantages over other antispam filters

Caretaker Antispam works differently from other antispam filters. Most filters need to be "trained" by the user to learn what is spam and what is a genuine message. Spammers know this, and have a number of tricks to mislead the filters. See the section below on tricks for more information.
Caretaker Antispam's filter is trained centrally, not by the user so when spammers find a new spamming method, the filter is updated automatically by the team of SurfRight experts. This mechanism ensures that Caretaker Antispam continuously filters out more than 99% of all spam messages, while the number of false positives (genuine messages that are classified as spam) is virtually zero


* Finds more spam than other built-in and external spam filters.
* The multi-layer scoresystem of Caretaker Antispam evaluates every incoming e-mail message based on heuristics, statistical models, and innovative image analysis.
* Analyses phrases - instead of single words - and thus identifies more spam than traditional text filters (Bayesian filters).
* Identifies all image based spam, despite diffuse patterns, font size and colours.
* NEW Smart link analysis automatically detects spammy web pages on hacked legitimate websites, advertised in spam messages.
* For up-to-the-minute detection Caretaker Antispam analyzes the distribution of spam versus legitimate email for the message recipients and calculates a receiver reputation for each based upon that distribution.
* Identifies URL spam, Phishing emails, stitched images, Invisible ink, PDF spam, Excel spam, etc.
* Detects potentially dangerous files by checking the contents of attachments.
* Sending and receiving e-mails is a fast process, taking advantage of parallel programming techniques.
* Provides your outgoing e-mail messages with a specific (indiscernible) stamp. Many ISP spam filters will trust your message with this stamp.
* No need to maintain whitelists.
* No conflicts with other existing spam filters and Caretaker Antispam can work as an extra filter.
* Operates transparently, just as you expect it.
* No need to configure anything.
* No changes to server or account settings.
* No toolbars or buttons.
* Support for POP3/SMTP mail programs including Office Outlook, Outlook Express, Windows Mail, Thunderbird, The Bat! and IncrediMail.
* Supports Windows XP, 2000, 2003, Vista, Windows 7 and 64-bit Windows (x64).

Spammers tricks

Most spam filters need to be trained by the user, by marking messages manually as spam over a couple of days. The filter then learns what words and combination of words are regarded as spam, and which are not. Spammers know this, and are always trying to trick filters. Spam messages often include genuine text besides the spam message. This increases the ratio of good text to bad text in a message, which lowers the score of the message so the spam message is identified as genuine. After marking these messages as spam, the filter is then poisoned with genuine text. This will lead to new genuine messages being identified as spam, so-called “false positives”. False positives are even more annoying to the user than a spam message. And when the number of false positives gets too high, the user will regard the filter as useles and turn it off.

Spammers are inventing other techniques to mislead spam filters by using text in images (image spam), text in pdf documents (pdf spam), invisible ink, etc.
The filter settings of Caretaker Antispam are maintained centrally by a team of SurfRight experts, to make sure that the filter will always remain effective

System Requirements:

No special requirements.
Program Release Status: Major Update
Program Install Support: Install and Uninstall

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