What networks can I add to my CircleBack account? CircleBack Support Updated October 26, 2016 01:18 Follow At this time, the following networks can be added to your CircleBack account: Google Exchange Server (2013 / 2010) Office 365 (Exchange online) Outlook.com Twitter Yahoo Related articles Does CircleBack sync push contact updates to third-party accounts (like Gmail)? What does adding a network do? How do I sync CircleBack contacts to my local address book? Can I capture signatures from sources other than Gmail? How do I sync additional devices (including non-iOS)? Comments 0 comments Article is closed for comments.