Xbox app message safety filter

Okay, this is bugging me since it happened. I was messaging with a friend and one of his messages for blocked by the safety settings, i looked at the message on the Xbox one when i could and that it filtered it because he used the other word for a mule. So i searched the app but couldn't find anywhere to alter the setting to the unfiltered option, or to change it in general. How do i go about changing that safety setting?

:)