Write a personal e-mail to each one.
Take the list and Cut and Paste in each name into the body.
Double check the name and e-mail address before pressing send.
If you were my employee that’s they way I’d want it done. (And yes I had my own business for 30 years before retiring it.)
As your Customer I would appreciate it too.
Thank you all so much for your links and assistance. It is much appreciated.