Applies to: User Mailbox
These steps are not required when you use EWS. For more information, see Using Exchange Web Services in an On-Premises Environment.
Microsoft Outlook 64-bit installation, 2010, or 2013.
Caution: Microsoft Outlook 2016 is not supported.
You must install Microsoft Outlook on the access node. The Microsoft Outlook license is not required.
Use only the traditional Windows Installer-based (MSI) method to install Microsoft Office. Other methods, such as Click-to-Run, are not supported.
Make sure that NTLM authentication in enabled.
If you use Exchange 2016 or Exchange 2013, you must install Microsoft Outlook 2013 SP1 or later service packs.