

If the only available type is Exchange, then use this one. If you have both Exchange and Exchange ActiveSync, make sure to select Exchange ActiveSync.

The best solution available was to install a third-party app which would serve as an intermediate “connector” between the device’s local calendar and a CalDAV server. Prior to the inclusion of ActiveSync support, owners of Android-based mobile phones and tablets had limited choices for connecting to their cPanel calendars because Android lacks native CalDAV support. In cPanel & WHM, ActiveSync support is provided by Z-Push, a piece of open-source software that we distribute in combination with Calendar and Contact Server (CCS) to provide ActiveSync support alongside CalDAV and CardDAV. The protocol uses a lightweight version of XML called WBXML to optimize traffic for the frequently slow and unreliable connections that may be encountered on cellular networks and public Wi-Fi hotspots.

Microsoft originally developed the Exchange ActiveSync (EAS) protocol-commonly known as ActiveSync-for use by mobile devices in combination with its Exchange Server.
