Articles

Knowledge articles related to Spam and Malware

• Kerio Connect Anti-Spam Filters

  Overview 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. ...

• Legitimate Emails Rejected as Malware or Phishing Spam

  Overview Users report problems with legitimate emails being incorrectly blocked/rejected by Bitdefender as phishing emails, malware, or spam. Users may find that attaching certain PDFs to emails is re...

• Configuring AntiHammering in Kerio Connect

  Overview Kerio Connect has a built-in AntiHammering security feature that protects from frequent SMTP logins by suspicious IP addresses. Once the failed login limit is reached, the Kerio Connect block...

• Internal emails are being marked as Spam

  Overview While the Kerio Connect Anti-spam feature is enabled, the internal emails might be wrongly marked as Spam. It can be considered as false-positive alert or misconfigured non-recommended Spam F...

• Custom whitelists are not overriding the Spam Filter

  Overview While configuring custom whitelists to work on top of the Spam Filter, the IP address filtration is not applied. The IP address group contains the trusted IP address list. Prerequisites Acces...

• Filter "From" spoofing emails

  Overview Users may report phishing emails where the email address does not match the person's real name. This type of spam email is called From Spoofing. The display name does not reflect the account ...

• Retrieving the '.eml' Source Files for Emails

  Overview This article shares the process of retrieving the '.eml' file or the 'email source' for a message. This is useful for resolving issues when emails are marked as spam/phishing for no apparent ...

• Excluding an Email Address From a Blacklist

  Overview Kerio Connect can ask online blacklists if a sender's outgoing mail server is listed as a known spam offender. These blacklists significantly reduce spam; however, they sometimes reject legit...

• Preventing Your Emails from Being Marked as Spam

  Overview At times, the IP address from which you send emails may be marked as spam sender or blacklisted by email service providers, e.g., Gmail, Yahoo, Yandex, etc. As a result, external users may re...

• SpamAssassin Bayes Folder Structure

  Overview This article provides information about SpamAssassin Bayes internal folder structure. This information is needed when a customer asks what files/folders can be deleted safely.   Information T...