System Requirements – Microsoft Outlook Integration
For proper operation of the Thru for Microsoft Outlook add-in, the following software and hardware requirements must be met:
Microsoft mainstream support for Windows 8.1 ended Jan. 9, 2018, and mainstream support for Windows 7 ended Jan. 13, 2015. Thru will continue to provide best-effort support of the Outlook plugin on these operating systems until the end of 2019.
Microsoft .NET Framework 4.5 or greater
Windows administrator access (for installation purposes only)
Microsoft Outlook 2016 (both 32-bit and 64-bit versions)
Microsoft Outlook 2013 (both 32-bit and 64-bit versions)
Microsoft Outlook 2010 (both 32-bit and 64-bit versions)
Outlook Cached Exchange Mode should be always enabled.
Cached mode is a general requirement for the Outlook add-in to work. It is the default MS configuration.
With the Cached mode disabled, we may not be able to resolve recipient addresses in some scenarios. Sometimes it may work but could be intermittent.
New discovered bugs will not be fixed for Outlook 2010.
If you are using an older version of Thru for Microsoft Outlook, download the latest version: https://softwaredelivery.thruinc.net/Publishing/Default.aspx?CollectionID=3LCYSCOKZCT2U
Hard Drive Space
28 MB or greater
Thru Add-In for Outlook does not support Gmail integrations via IMAP or MAPI; currently, Thru Add-In for Outlook works only with Microsoft Exchange or Office 365.
Note : Users that are in the Basic User Group will not be able to use this Microsoft Outlook add-in.