Requirements for Microsoft Outlook

This is a third-party integration for Microsoft Outlook for Office 365.

Here are the requirements for the server and the client to provide the correct load and function of the add-in.

Client requirements

• The client must be one of the supported hosts for Outlook add-ins. The following clients support add-ins:

  • Outlook 2013 or later on Windows

  • Outlook 2016 or later on Mac

  • Outlook on iOS read notes

  • Outlook on Android read notes

  • Outlook on the web for Exchange 2016 or later and Office 365

  • Outlook on the web for Exchange 2013

  • Outlook.com

• The client must be connected to an Exchange server or Office 365 using a direct connection. When configuring the client, the user must choose an Exchange, Office 365, or Outlook.com account type. If the client is configured to connect with POP3 or IMAP, add-ins will not load.

Mail server requirements

If the user is connected to Office 365 or Outlook.com, mail server requirements are already applied. However, for users connected to on-premises installations of Exchange Server, the following requirements must be met.

• The server must be Exchange 2013 or later.

• Exchange Web Services (EWS) must be enabled and must be exposed to the Internet. Many add-ins require EWS to function properly.

• The server must have a valid authentication certificate in order for the server to issue valid identity tokens. New installations of Exchange Server include a default authentication certificate. For more information, see Digital certificates and encryption in Exchange 2016 and Set-AuthConfig.

• To access the add-in from AppSource, the client access servers must be able to communicate with AppSource.