Adding email popup to WordPress is easy. In the WordPress admin area, go to Appearance > Widgets.
In the Widget area, click on the Add New Item link. In the Widgets area, select Email Popup from the list. In the popup window, enter the following information:.
Name: Email Popup
Description: Show email popup when someone visits a page
Click on the Install button. Once installed, the Email Popup widget will appear on the Pages and Posts screens. To use it, click on the Add New Button link next to the Posts screen. In the Email Popup window, enter the email address of the person you want to send the email to.
Click on the Send Email button. The email will be sent to the address you entered.
To disable the email popup, go to the Email Popup widget and click on the Remove Button.