Hi,
as we see you have installed many plugins to your page. Try to deactivate them all (except Contact Form 7), and then activate one by one plugin to test this.
You only can test this with your email and we can’t access to your email.
You can find some answers here:
http://contactform7.com/setting-up-mail/
Scroll down to the end of this article and you will see this sentence:
The article covers the following items that can commonly cause email sending problems with this plugin (and WordPress in general):
below that is some solutions that can help you.
Kind regards