Feedback mail address in Microsoft Threat Modeling tool is not working anymore

Question

Hi,

I tried to give feedback for the Microsoft Threat Modeling tool via the published mail adress which you can find in the tool by clicking on the smiley (tmtextsupport@microsoft.com).

After sending out my mail I get an error message that no external sender is allowed to send mails to this address.

Is there any other mail adress or contact person I can reach out with specific feedback/questions?