Generally, multiple e-mail addresses need to be separated by a comma, and only a comma and nothing else.
Sorry, maybe I wasn't clear.
In the 'Send Email Options' it reads; send via email client.
I think the script doesn't know which email address to send 'from'.
You can't do what you want. You've got to send with a dialog and choose the email profile. How easy that is depends on your actual client.
You could also learn about Send as SMTP. Then you can control the send from account.
I'll just attach the PDF.