Registering Sophos Mail with GSuite on iOS



I've setup the exchange configuration for iOS and pushed the configuration to my iOS device.

When starting the mail app on my iOS device I have to register. After entering the password for my GSuite accout I get the follwing error message:

Sophos Secure Email supports the following ActiveSync proctocols: 14.0, 14.1, 16.0, 16.1. Your server supports the follwing protocols 1.0, 2.0, 2.5, 12.0. (Exchange995)

What am I missing, how can I access my mails with that app?


Thanks in advance,