Hello Elam!
The guide you report refers on how to synchronize Zimbra OSE and any iOS device WITHOUT using ZeXtras Mobile. In order to configure the device to synchronize with your Zimbra server through ZeXtras Mobile please follow the documentation you can find at
ZxMobile on Apple iOS devices - ZeXtras Suite Wiki. Mind that ZeXtras Mobile does not synchronize shared items.
Also, your ZeXtras Suite version is a bit old and support for such version is not given anymore... I strongly suggest you to update to ZeXtras Suite 1.8.1.
Have a nice day,
Cine
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