Issue: When users interfacing with a Kerio mail server register to GO!Enterprise MDM, a 500 error is returned to the device and the registration does not complete.
Background: Kerio considers a command used for validating NotifyMDM traffic to be from an unsupported device.
Work Around: The issue can be circumvented by following the instructions outlined from the Kerio knowledge base article **'Allow Unsupported Device with Kerio MailServer' listed below:
Problem:
User has a device that is not supported by Kerio MailServer and would like to have an email connection via ActivSync.
Solution:
Stop the Kerio MailServer.
Locate the mailserver.cfg file, edit this file with a text editor;
Search for the following variable
<variable name="AllowUnsupportedDevices">0</variable>
Change the value from a '0' to a '1'
<variable name="AllowUnsupportedDevices">1</variable>
Save the change and restart the Kerio MailServer.
*Please note that by allowing unsupported devices, Technical Support may not be able to help with any issues that occur with the unsupported device.
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The default location of the 'mailserver.cfg' file is;
Windows
C:\Program Files\Kerio\MailServer
Mac
/usr/local/kerio/mailserver
Linux
/opt/kerio/mailserver
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**Please note the 'Allow Unsupported Device with Kerio MailServer' Kerio knowledge base article (ID 547) is no longer available.
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