Hi Spruce,
I remember you and your story. It is sad to get this kind of negative, lousy, email especially after a year of NC/LC. I see this same type of thing going on with my SO's daughters and their uBPDmom too.
The good news is
you and all the good things that you have done for yourself in the last year. Feeling good enough to get off the medication is great.

Working on that mind body connection is really good.

Yoga and running

The fact that you can see this email for what it is and not be triggered by it is excellent.

And you came here to share this email also a good healthy move

Unfortunately you can't fix your mom and her life, she will live it the same way with you in it or with you not in it.
You have decided not to be sucked into the chaos any longer and you made the healthy choice to live your life to the fullest. Good for you!
Keep doing what you are doing.
Panda39