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How to repair or reset Anti-Virus in Kerio Connect
Added on Sun, Jan 6, 2013
Summary  Kerio Connect 9.2.2 and newer includes a new antivirus engine, Kerio Antivirus. For details, refer to Antivirus protection in Kerio Connect. This document will help guide you throughthe process of repairing your AV in Kerio Co... Read More
Detecting that Kerio Connect has been compromised and used for spamming
Added on Thu, Jul 19, 2012
DetailsYour server may be compromised if any of the following happens:Your Kerio Connect server is slow.Users get bounce backs of emails they did not send.Your Kerio Connect server IP address (external IP) is getting blacklisted.A large email queue c... Read More
Installing Kerio Connect on Mac OS X 10.10 Yosemite and above
Added on Sat, Nov 22, 2014
SummaryFor optimal support of Mac OS X 10.10 (Yosemite) and above you must install the current version of Kerio Connect. Additional configuration may be necessary to address the following items defined in this article.Sending email or performing... Read More
Cannot start HTTP or HTTPS services on Mac OS
Added on Tue, Sep 13, 2011
SummaryAfter installing Kerio Connect on Mac OS, the HTTP and HTTPS services may not start because the ports 80 and 443 are already in use by another process. DetailsYosemite and El CapitanEdit the apache configuration file:/Library/Server/... Read More
How fix a malformed .journal.db with a SQLite error
Added on Fri, May 11, 2012
Summary This article will show you how to fix a corrupt .journal.db that is being reported in the error log. Solution The best way to see if the .journal.db needs fixing is too look for the following line in the error log: [11/May... Read More
Kerio Connect user cannot login to their email account
Added on Tue, Jun 12, 2012
Summary This article will cover common fixes for users that all of a sudden cannot login to their Kerio Connect account. Details When a user cannot login to Kerio Connect client or through their email client you try the following to so... Read More
I have created a custom rule to allow an email address or domain through but it is still being blocked
Added on Sun, Jan 6, 2013
Details   I have created a custom rule to allow anemail address or domain through but it is still being blocked.SummaryThis article will help show you why creatinga custom rule can sometimes not be enough to allow an email address or domain... Read More
Browser extensions or add-ons may interfere with Kerio products
Added on Fri, Oct 4, 2013
DetailsWhen you have trouble working with an administration or client interface of Kerio products, you can try to disable or uninstall all your browser's extensions/add-ons.Here are some tips on how to do it in the most common browsers:Google Ch... Read More
Kerio Connect Client is not displayed correctly in Internet Explorer
Added on Thu, Apr 18, 2013
SummaryThe Kerio Connect Client can be incorrectly displayed while using Microsoft Internet Explorer in the incorrect mode.DetailsMicrosoft Internet Explorer supports several different compatibility modes; some of these modes might cause Internet Exp... Read More
Why does the Exchange migration tool state I am not an administator?
Added on Mon, May 30, 2011
SummaryWhy does the Exchange migration tool state I am not an administator?DetailsOne of the requirements when running the Kerio Exchange Migration Tool is that the user account you use must be an Exchange Administrator.Check the following if migrati... Read More
Distributed Sender Blackhole List Errors (DSBL)
Added on Wed, May 25, 2011
SummaryYou are seeing errors in your logs indicating a DNS failure, when checking against list.dsbl.org or unconfirmed.dsbl.orgorYou are experiencing delays when receiving emails, due to slow response times, or timeouts when querying *.dsbl.orgReason... Read More
I’ve been training the spam filter but I’m still receiving the same spam emails
Added on Mon, May 30, 2011
SummaryUsers have been training the mail server by marking messages as spam, or moving messages to the Junk Email folder, however they continue to receive the same spam emails. DetailsKerio Connect includes a distribution of SpamAssassin, which ... Read More
Why does Kerio Connect automatically expunge messages marked for deletion through IMAP?
Added on Thu, Nov 17, 2011
SummaryWhen deleting or moving items through IMAP protocol, the designed behavior is to mark messages for the performed action. The resulting behavior in some IMAP clients is to display these marked messages with a strikethrough. For most users, this... Read More
I can’t use national characters in my password.
Added on Mon, May 30, 2011
SummaryYou use national or language specific characters in your username or password. After creating your account or changing your password, you are unable to connect to your mail account. DetailsOnly certain characters may be used in the username. S... Read More
How do I reset the password for a user if I’ve lost access to the WebAdmin of Kerio Connect?
Added on Thu, Jun 2, 2011
About sharingIf you lose your administrator account for Kerio Connect administration, you can reset it by modifying the users.cfg file.Resetting the admin passwordWindowsStop the Kerio Connect Engine — right-click the engine monitor icon in the... Read More
How do I get older versions of Kerio software?
Added on Mon, May 23, 2011
SummaryDetailsSometimes it is necessary to obtain an older version of Kerio software than the current version that is offered on the main Kerio download web pages. Follow these steps to download an older version of Kerio software:From a web browser o... Read More
POP3 connection fails during download
Added on Tue, May 31, 2011
SummaryDownloading mail via POP3 fails part way through. No mail is deleted, so the next download attempts to download the same mails, and fails at the same point.DetailsCheck for an abnormal messageLog into the account via the webmail interface. If ... Read More
SMTP Status and Reply codes
Added on Wed, Oct 22, 2014
About SMTP Status and Reply CodesThis article gives you a list of SMTP status codes and SMTP reply codes that can help you troubleshootemail issues within Kerio Connect.These codes are present in the Mail log and Debug log. Right-click in the De... Read More
I can’t send outgoing mail if I’m using Open Directory or Active Directory!
Added on Fri, May 27, 2011
SummarySome mail clients are unable to send or receive mail if the user is authenticated through Active Directory or Open Directory. Users using the "internal user database" work correctly.DetailsYour clients are most likely using one of the two form... Read More
Why am I getting multiple copies of an email?
Added on Mon, May 16, 2011
AnswerYou can change this behavior in the Configuration -> Delivery -> POP3 Download -> (Select account) -> Edit -> Drop duplicate messages option. DiscussionIf you use a single POP3 mailbox from your ISP for all your users, then sort them into ... Read More
Active Directory/LDAP error: Unable to search in dc=example,dc=domain,dc=com (Size limit exceeded)
Added on Tue, May 31, 2011
SummaryWhen importing users from Active Directory, the import fails and returns the following error:(8503:4) Active Directory/LDAP error: Unable to search in dc=example,dc=domain,dc=com (Size limit exceeded)By default, Active Directory does not respo... Read More
Emails Dated 2010 are marked as SPAM
Added on Mon, May 23, 2011
This article applies only to versions of KerioMailServer older than 6.7.3 Patch 1.SummarySpamAssassin 3.2.5 used in Kerio MailServer's Spam Filter contains a bug may cause all emails sent in year 2010 to get additional 3.188 spam score points. T... Read More
Users folder size is reporting incorrectly in WebAdmin
Added on Wed, Apr 18, 2012
SummaryA users storage usage is incorrect in WebAdmin compared to what is being reported by the Operating System for that users folder in the store.SolutionThe storage usage for a user is calculated from a number of files within that users folder.Th... Read More
How do I get the .eml source for an email?
Added on Mon, May 30, 2011
SummaryYou have contacted support regarding a problem, and they have requested the "eml" file or "email source" for a message.DetailsThe email source is easy to obtain with no need to access the mail server store folder. However, it is necessary to l... Read More
Moving user from active directory service to local user database or vice versa causes synchronization errors with Outlook 2011
Added on Tue, Feb 12, 2013
SummaryThe user was moved from directory service to the local user database or vice versa. Outlook 2011 starts to produce error messages.DetailsEWS error messages: EwsOperation.cpp: EWS request GetItem: Message conversion failed (~user@domain.tld/IN... Read More