Setting up a distribution list

I thought I pasted in the instructions.

Create and change lists in Contacts on Mac - Apple Support

There is a link at the bottom of the article on how to use it in Mail.

if that doesn’t work for some reason, post back with details of what’s not working or what you’re seeing when you follow the steps.

mstearns2000 wrote:

how do I set up a distribution list in Mail?

You don’t. You set it up In Contacts.