Reply To: Invoice isn’t attached to the mail

I turned on the WP_DEBUG option in the wp-config file but there are no issues.
Did you use the invoice function in your demo and did you receive the invoice attached with the mail function?
Because I didn’t receive the invoice send within your demo site too…

About IE8, you’re absolutely right but it is still installed because of an work related webapplication that only works correct with IE8.. :-(.