This is the easiest and fastest method and automatically configures Apple Mail, Outlook for Mac, Entourage, iCal, Address Book and even Instant Messaging.
Under ”Connect Account Assistant” click the “Download” button. Enter your full email address and email password to download the Kerio Connect Account Assistant. Find the “Kerio-Connect-Account-Assistant.zip” in your downloads folder, double click to decompress it. Next, hold the Control key down and click to open “Kerio-Connect-Account-Assistant.mpkg”. You may see a message about being from an unknown developer. This is okay. Continue to go through the installation steps.