UPDATE POSTED 10/10/2017 based on new Microsoft information. Changes to the original SkyKick blog, posted on 21 August, are noted below in ITALICS.
Microsoft has updated their recent announcement about the protocol previously used by Outlook 2007, 2010, and 2013 to connect with Office 365 (RPC over HTTP aka Outlook Anywhere). The updated announcement indicates that the protocol will NOT be removed on October 31, but confirms that RPC over HTTP will reach end of support in Office 365 at that time, and that MAPI-over-HTTP will be the only supported protocol. The update also emphasizes that...Read more