Supported platforms and system requirements

The tables below show the list of supported platforms and program's requirements:

Software components
The program consists of two main components installed together:
  • CodeTwo Exchange Migration Data Provider Service - responsible for accessing source Exchange mailboxes via MAPI
  • CodeTwo Exchange Migration Administration Panel - for managing and performing migrations
SOURCE server environment requirements
Where to install When migrating from Exchange Server, program can be installed either directly on the server machine or on any workstation in the source server environment. Installing directly on the source Exchange Server machine is recommended, but only under certain conditions (learn more and check exceptions). In the case of migration from an IMAP source or from Office 365, the software can be installed on any machine with a connection to both the source and the target environment.
Supported operating systems All 32- and 64-bit systems starting from Windows 7 / Windows Server 2008 R2 up to Windows 10 / Windows Server 2012 R2 are supported. Installing the software on older systems (Windows Vista / Windows Server 2008 / SBS 2008) is not recommended, while installing on legacy systems (Windows XP / Windows Server 2003 / SBS 2003) is not possible at all - you need to use a separate workstation with a newer Windows version.
Hardware There are no specific hardware requirements for the software to run, however migration bottlenecks may occur due to old or slow equipment. For the best software performance we recommend that you use at least a quad-core CPU and 4GB of RAM. Be aware, aside from that and Internet connection speed, migration may also be affected by the performance of your LAN hardware such as modem, router, switch and Ethernet card. Read more here.
Migration source
  • Office 365 (*)
  • Exchange Server 2016
  • Exchange Server 2013
  • Exchange Server 2010 SP2
  • Exchange Server 2007 SP3
  • Exchange Server 2003
  • Windows Small Business Server (all versions)
  • all other mail servers, e.g. Gmail (access via IMAP)

(*) Source Office 365 requirements:

  • Office 365 Plans with Exchange Online.
Required accounts and permissions

The software user:

  • must be a Local Administrator,
  • must have a valid, working, non-hidden mailbox in the source environment.

Connection to source Exchange via MAPI
Besides the general requirements above, the user account selected for the MAPI service (learn more) must be a member of an appropriate AD group, depending on the source Exchange Server version:

  • Organization Management (Exchange 2010, 2013)
  • Exchange Organization Administrators (Exchange 2007)
  • Domain Admins (Exchange 2003).

Connection to source Exchange via EWS
Besides the general requirements above, credentials to source Exchange Server are required. Such an account:

  • must have a UPN address configured,
  • must belong to Organization Management,
  • must have Impersonation rights assigned (this will be done automatically by the software),
  • must be mailbox-enabled.

See our KB for Role Based Access Control (RBAC) compliance.

Connection to source Office 365 (via EWS):

Credentials to source Office 365 account are required. Such an account:

  • must have a UPN address configured,
  • must belong to Global Admins,
  • must have Impersonation rights assigned (this will be done automatically by the software),
  • must be mailbox-enabled.

See our KB for Role Based Access Control (RBAC) compliance.

IMAP migration requires users' account credentials. Learn more

Migration of public folders requires full access permissions, see details.

Additional components

Depending on the environment, the installation of the below-listed components might be required:

  • One of the Windows Management Framework Core components
  • .NET 4.0 or higher (required on all systems, might be already installed)
  • MAPI Client and Collaboration Data Objects (MAPI CDO, required on any system except for ones equipped with x86 version of Outlook older than 2016) 


    MAPI CDO is required only for MAPI migrations.

    Additionally, if your machine is equipped with x86 version of Outlook older than 2016 the installation is still possible but strongly not recommended, as the MAPI CDO component could not be installed due to conflict with MAPI libraries provided by Outlook. Be advised that high percentage of your items might be considered a corrupted or the migration may turn out impossible because of authentication error.

If so, the software will display appropriate message.

TARGET server environment requirements
Migration target  Migration to any version of Exchange Server starting from Exchange 2010 SP2 is supported - you can migrate to the same, earlier or later version of the software. See details.
  • Exchange Server 2016
  • Exchange Server 2013
  • Exchange Server 2010
  • Small Business Server 2011

Looking for migration to Office 365?

Service account rights

To connect and migrate, credentials to target Exchange Server are required. Such an account:

See our KB for Role Based Access Control (RBAC) compliance.

See also: Notes and warnings in the table below.

Items supported for migration The program supports migration of all standard Exchange Server/Office 365 mailbox items and Exchange public folder items via MAPI and EWS; only emails can be migrated from other servers (accessed via IMAP).
Notes and warnings In the case of source connection via MAPI, the program cannot be installed on a machine equipped with Outlook 2016 or with the following 64-bit versions of Outlook: 2010, 2013, 2016.
The program may not work properly if installed alongside other applications that use MAPI libraries. Install CodeTwo software on another machine, do not share service account with any other MAPI-using programs while migration is in progress, to avoid conflicts. Disabling such programs is recommended.
The program migrates mailboxes' and Public Folders' contents only. Mailboxes' properties, permissions, AD accounts, AD groups membership, GAL, etc. are NOT migrated, however, you can set the program to create mailboxes automatically and migrate desired AD propertiesBe advised, some of mentioned properties are recreated automatically by target server upon successful migration e.g. free/busy statuses
Migration of Public Folders is possible only if target Public Folders were already created (see how to do this).
Migration of linked mailboxes and resource mailboxes (such as conference rooms) is currently not supported.
Migration of shared mailboxes is possible, however, be aware that All Users and other group filters do not list disabled users (to which shared mailboxes are assigned) so you need to either pick them manually using Active Directory User filter or enabled those users' accounts in the AD. Migration TO shared mailboxes works.
Hybrid setup support Hybrid as a source: Migrating from a hybrid environment is possible. To migrate your on-premises mailboxes, you need to create a connection to on-premises Exchange Server. To migrate your Office 365 mailboxes, you need to create a connection to Office 365. To migrate a hybrid environment you can, for example, create two migration jobs: one connecting to source on-premises mailboxes, and another connecting to source Office 365 mailboxes.
Hybrid as a target: Migrating to a hybrid environment is supported if you use CodeTwo Exchange Migration to migrate to mailboxes located in on-premises Exchange (target server connection must use on-premises admin account) and CodeTwo Office 365 Migration to migrate to mailboxes located in Exchange Online (target server connection must use Office 365 admin account).
ADFS is not yet supported. Single Sign On (SSO)-enabled accounts may be used for target server connection configuration but only when a UPN in a non-federated target domain address is used (e.g. *

See also

Installation process - this article describes step-by-step how to install the program.

Was this information useful?