System requirements

See the tables below for the CodeTwo Exchange Sync requirements:

Software components
The program consists of two main components installed together:
  • CodeTwo Exchange Sync Service - responsible for synchronization
  • CodeTwo Exchange Sync Administration Panel - for managing synchronization tasks
Installation and usage requirements
Required permissions: To install the software and later run the Administration Panel an account that meets the below requirements must be used:
  • is a member of Domain Admins (required to access Exchange mailboxes via MAPI)
  • is not disabled, locked, etc.
  • is Exchange mailbox-enabled
  • its mailbox is not hidden from Exchange address list
  • is located in the main users container in your Active Directory - it is not recommended to place that account in a sub-container
  • does not contain special or regional characters in its name.
The Sync Service can be configured to use either the same account or a different designated service account of your choice. However, such an account must also meet the above listed requirements.

All 32 and 64-bit systems starting from Windows Server 2008 R2 SP1 up to Windows 10 / Windows Server 2016[1] are supported.

Exchange Server compatibility matrix
  Exchange Servers
2013, 2010 and 2007
(including SBS: 2011[2], and 2007[3])
Installation directly on Exchange
without Outlook
  • supported
with Outlook
  • not supported
Installation on a workstation
without Outlook
  • supported
with Outlook 2007 or older
  • not supported
with 32 bit Outlook 2010 or 2013
  • supported
with Outlook 2016 or 2019
  • not supported


  1. ^ Make sure your operating system includes the latest updates. Learn more.
  2. ^ In the case of Microsoft Small Business Server 2011, you need to install CodeTwo Exchange Sync directly on the machine with SBS.
  3. ^ 32 bit version of Exchange Server 2007 is not supported.
Size on disk after installation: Similar to the size of the installation file (see the Download page for details). Installation of additional components might be required - these components usually require less than 100 MB of available disk space.
Additional components:
  • .NET 4.0 Framework.
  • MAPI Client and Collaboration Data Objects (MAPI CDO)
Notes and warnings Restart of the machine might be required after installing the software, see manual.
Avoid installing on a machine where other MAPI-using software is already installed e.g. older versions of BES as conflicts may occur or MAPI limits might be reached.
The software is not made for mixed environments - it will not synchronize mailboxes between two or more different Exchange Server versions e.g. between Exchange 2007 and 2010.
If you ever customized your IIS please review this Knowledge Base article on supported IIS configuration.
Exchange Server 2016 and 2019 are not supported.
Hybrid setup support Synchronization in hybrid environments is possible only for accounts that have mailboxes in on-premises Exchange. Service account and Windows logged-on user must both use accounts that have mailboxes in on-premises Exchange.
ADFS is not yet supported, Single Sign On (SSO)-enabled accounts should not be used as a service account or to run the software.

Learn more about the program's architecture
Learn more about the installation process
Learn more about connecting to Exchange

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