This add-in is supported in Outlook 2013 for Windows, Outlook 2016 for Windows, Outlook 2016 for Mac or Outlook on the web with either Office 365, Exchange 2013 or Exchange 2016 mailboxes. Salesforce today the general availability of Lightning for Outlook add-in to all Salesforce customers with the necessary licenses.The following versions: 3.4, 1.7 and 1.6 are the most frequently downloaded ones by the program users. The program's installer file is generally known as SfdcMsOl.exe. Our website provides a free download of Salesforce for Outlook 3.4.8.222.