Putting multiple Bcc email addresses in 'Additional Headers'

Hi guys,

Thanks for taking a look at my query

Wanting to put 3 different emails in the ‘Additional Headers’
The first one is no problem though when I try put the next two in, they don’t seem to work.

Have tried spaces commas and semicolons to separate the email addresses and also putting different email addresses on separate lines i.e.

Bcc: myemail@hotmail.com
Bcc: youremail@hotmail.com

http://contactform7.com/adding-cc-bcc-and-other-mail-headers/

Thanks heaps,
Ben

http://wordpress.org/plugins/contact-form-7/