![]() Instead, it uses self-learning over time to identify the types of emails that your users consider to be spam or not. The Apache SpamAssassin Bayes filter does not rely on an external database of emails, like with Bitdefender’s service. ![]() If SpamAssassin is enabled, you can set the Kerio Anti-spam settings to 1-9. If SpamAssassin is disabled, you can set the Kerio Anti-spam settings to 2-18. X is the score Kerio Connect receives from Bitdefender.If Bitdefender score is between 1 and 9 (spam).Kerio Connect calculates the Kerio Anti-spam score using a special algorithm and adds the score to the overall spam rating. The algorithm works as follows: The hashes of images that are embedded in the messages.Certain types of attachments, for example, Microsoft Office documents, PDFs, executable files.The FROM address, FROM domain, and REPLY-TO address.URLs, email addresses, and telephone numbers contained in the body of the scanned email message.Note: The hashes are irreversible - Kerio Connect does not send the original email body.The email message fingerprint - a set of cryptographic hashes on different parts of the email headers and body.The sender and the sender’s IP address of the original message from the email SMTP envelope.Bitdefender online scanning service receives the following information via HTTPS: Kerio Connect does not send any information that could be used to identify a specific person, such as the content of the original email body, attached images, or attached files. Types of Data that Kerio Connect sends to Bitdefender In that case, you can adjust its contribution to the overall score. Suppose you see that BitDefender is harsh and identifies many false positives on some of the emails that you believe are legitimate. It is suggested that you monitor your incoming emails and adjust your weight configuration to determine what values work best for your environment. If you set it higher, it means you are more inclined to accept Bitdefender’s verdict regarding whether a given email is spam or not. ![]() The configured value for the Advanced Anti-Spam Filter sets the BitDefender filter’s contribution/ weightage to the overall spam score. Based on the Spam Score Limits configuration, the email is delivered normally, routed to a quarantine mailbox, or rejected outright. This Bitdefender score is then used within an internal algorithm and adds this score to the overall “Spam Rating” of the email. If the Kerio Connect server is behind a firewall, it requires unrestricted access to *. on port 443 and on port 80 for this data transmission.īitdefender scans the data and returns their “score” ranging from 0 (non-spam) to 9 (Highly Likely). When an email is received with the filter enabled, Kerio Connect sends encrypted data to the Bitdefender online scanning service about the email content. It provides an advanced level of spam filtering for incoming messages. The Kerio Anti-spam extension uses the Bitdefender online scanning service. Types of Data that Kerio Connect sends to Bitdefender.Starting in Kerio Connect version 9.2, Kerio Anti-spam can now be used with Apache SpamAssassin to fine-tune the exact content you want your users to receive. In older versions of Kerio Connect (versions 9.0.3 - 9.1.1), Kerio Anti-spam replaced the SpamAssassin’s SURBL and Bayes filters. Kerio Connect offers two primary forms of Anti-Spam protection - the built-in Apache SpamAssassin Anti-Spam Bayesian filter and the paid add-on Kerio Anti-Spam filter powered by Bitdefender.
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