I have SBA / Crystal Tech hosting and since it’s Windows hosting, it doesn’t like the standard PHP mail functions. Thus, the Contact 7 plug-in doesn’t work.
The way around that is to install the WP Mail SMTP plugin.
Make sure to change the mail server from ‘localhost’ to the mail server associated with your hosting account. In the control panel, if it says ‘MAILA69’, you’ll want to enter in the full URL: maila69.webcontrolcenter.com