Before you start migrating, prepare the following items:
Kerio Exchange Migration Tool installation package (it is available for free download from Kerio Technologies).
Installation package of Kerio MailServer 6.5.2 or higher (trial version can also be used for this purpose).
Installation package of the Microsoft Outlook® 2003 (with Service Pack 3 or higher) or 2007 (with Pack 1 or higher).
(Optionally) the Kerio Active Directory Extension installation package — if users are managed through Active Directory®, it is possible to map user accounts toKerio MailServer® first (see Kerio MailServer 6, Administrator's Guide), before the very migration, so users keep their mailbox passwords, i.e. they keep authenticating against Active Directory®.
Install and run Kerio MailServer. Make sure that the IMAP protocol on port 143 is enabled in in the administration interface.
On the computer available both for the Kerio MailServer and for the Exchange Server, install the Microsoft Outlook installation package as well asKerio Exchange Migration Tool. Kerio Exchange Migration Tool can be installed on any of the following systems:
Windows® XP
Windows Vista®
Windows® 2003 Server
Windows® 2008 Server
If you install Microsoft Outlook and Kerio Exchange Migration Tool on the Microsoft Exchange Server host, the migration will not work.
Microsoft Outlook and Kerio Exchange Migration Tool can be installed on the same computer where Kerio MailServer is installed.
Optional but recommended setting: Map or import user accounts to be involved in the migration process. In case of setting of mapping of user accounts, follow also these guidelines:
After completion of mapping settings, go to section Users in the Kerio MailServer's administration interface and click on Add. This opens a dialog asking whether the user would be mapped or a local one would be created. Choose the option of mapping and in the list opened, select all users to be migrated to Kerio MailServer. For detailed guidelines for password change, refer to Kerio MailServer 6, Administrator's Guide.
Before starting the migration, it is recommended to guarantee that Microsoft Exchange Server does not accept any emails and that no user whose account is involved in the migration could connect to it (obviously except the administrator's account which is used for connection of the migration tool to the server). Otherwise, migrated data might be inconsistent.
The migration requires that both the Kerio MailServer and the Microsoft Exchange Server are running.