CF Geo Plugin enabled direct integration with Contact Form 7 via standard shortcodes supported by Contact Form 7.
To enable this option, you need to go to the Geo Plugin -> Settings and enable Contact Form 7 integration. After that you will have new fields inside Contact Form 7 added by CF Geo Plugin.
Once you have enable it, click on Update all Options button, go to your Contact Form 7 and select one of the contact forms you have or create a new one. After that, you will see that your Contact Form 7 has new shortcodes that you can use on the standard way.
countryis shortcode name and
country_nameis your mail tag what you will include in the body of the email
country_nameyou can name it how you want like normal Contact Form 7 field.