ReSieve Email spam filter See Screenshots   Read Help File Download ReSieve

Email Spam Filter

ReSieve classifies email into categories you define. It can sort into spam and not spam or into any number of categories you like (e.g. work, personal, important project, hobby, etc.).

The classification is done using a naïve Bayes algorithm. In other words, ReSieve uses statistics to track which words are likely to appear in which messages. This means that ReSieve will adapt to the kind of mail you receive and needs to be trained. Out of the box, it doesn't know anything about spam or how messages from your mother differ from those your friends send you. However, if you train it, it will soon learn how to tell these different kinds of messages apart. 

How does ReSieve work?

ReSieve is a proxy which sits between your mail client and your mail server. Commands generated by your email client are passed through ReSieve to the email server. As messages are retrieved, ReSieve reads incoming messages, tries to classify them to the categories you have defined and then passes them on to your email client.

How does ReSieve know how to sort email properly? It uses an old, but powerful mathematical technique known as Bayes Theorem (to be precise, Naïve Bayes created by [Reverend Thomas Bayes] around 1720.)

ReSieve breaks down messages into words, parses attachments and filters out HTML, and then uses this algorithm to automatically sort a message into different buckets that you have defined. Your email client can then transfer the messages into different mailboxes based on the bucket classification. ReSieve learns by determining the messages characteristics associated with each bucket.

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