This network is blocking encrypted DNS traffic

[maxhester]

Hi, not sure where the setting is to adjust this so this message goes away? I found that this was odd. 

[ww]

Sounds like your using a content filter that is blocking doh/dot on your mx or using umbrella

[maxhester]

I am not using either in this case. 

[alemabrahao]

Have you opened a support case?

[PhilipDAth]

The "Filter Avoidance" content category will block encrypted DNS.

Personally, I turned off encrypted DNS in business environments (either via AD group policy or Intune).  It reduces your ability to block threats at the perimeter a lot.  The risk is not worth the privacy gained, in a business environment, for the vast majority of countries (however I do accept their are some oppressive regimes where encrypted DNS may be needed for safety).