Articles

Knowledge articles related to Spam and Malware

• Legitimate emails from external users are getting blocked after turning on Spam Blacklist function

  Overview This article provides information on why legitimate emails from external users may suddenly be getting blocked after turning on Spam Blacklist function. Information This is mostly affected by...

• Blacklist entry not found in the List by Blacklist provider but still exists in Kerio logs as blocked

  Overview You are facing an issue that a Blacklist entry is not found in the List by Blacklist provider, but still exists in Kerio logs as blocked. You are getting an error message in the log as below:...

• Compromised Servers - Troubleshooting Article

  Overview This article explains how to troubleshoot a potentially compromised account or server. Common symptoms related to these issues are: Users report issues with sending or receiving emails, and y...

• Anti-Spoofing not preventing Spoofed Spam Messages from a certain IP

  Overview You have enabled Anti-Spoofing, but continue to see spoofed spam emails from a particular IP address, such as the Localhost (127.0.0.1), getting stuck in the mail queue with the errors like “...

• What is the best setting for Kerio Advanced Anti-Spam filter?

  Overview The article Configuring Kerio Anti-Spam outlines the steps to configure the spam-related settings in Kerio Connect. This article provides information for possible/recommended settings for bes...

• Should the Spam URI Realtime Blocklist (SURBL) check be enabled?

  Overview You have reviewed the articles Configuring Kerio Anti-Spam and Kerio Connect Anti-Spam Filters and would like to know if it is okay to have every email be checked against the Spam URI Realtim...

• Unable to receive any emails after turning off Open Relay

  Overview You’ve recently turned off ‘Open Relay’ as it caused blacklisting of your IP due to unauthorized use. Now incoming emails are being rejected by the server.   Information Telnet (or Netcat) to...

• Kerio Anti-spam failed to get license information with result 0xc0000010 (BDANTISPAM_ERROR_CLOUD_NO_RESPONSE)

  Overview If you are experiencing an issue with the Kerio Anti-spam plugin on your server, where it fails to initialize and displays an error message Kerio Anti-spam failed to get license information w...

• Blacklist DNS Failures in Kerio Connect

  Overview You may notice in the Warning logs of your Kerio Connect server DNS failures related to blacklist checking, similar to the below: [20/Jan/2023 12:02:36] DNS failure while trying to find addre...

• ‭Kerio Anti-spam failed to get license information with result 0xc0000007 (BDANTISPAM_ERROR_CORE_ENGINE)

  Overview If you are experiencing an issue with the Kerio Anti-spam plugin on your server, where it fails to initialize and the below error is displayed in the logs, this guide is for you.  [09/Jan/202...