For all searching for this Problem with Teams not showing the calender app using hybrid szenario. Refering to this basic guide: Sophos UTM: Create WAF to allow traffic through Exchange 2016 using the MS Connection Tool: https://testconnectivity…

I need to allow DNS lookups for a particular .tk domain. I read this old thread but " Add an Exception for wiki.tcl.tk in 'Advanced Protection >> Advanced Threat Protection " doesn't work. The DNS lookup traffic is still blocked. I'm in the same situation…