I know this thread is old, but maybe somebody can still help. I had the same issue and used the code from Scott L to disable customer details email, but now WCFM does not properly complete a newly placed order and so no admin email is sent either.

What I want:

I want to place an order in WCFM and have admin email submitted, but no customer details email to the customers email adress.

Can anybody help?

Thank you,

Andrea