Gravity Perks Email Users Addon GPL Overview:

This plugin allows you to send tailored emails to users who have filled out a form containing an email field. Use merge tags in the email body to personalize the content based on the details of their submission.

Gravity Perks Email Users Addon GPL Features:

• Email all users that have submitted a form entry.
  Easily send emails to a list directly through WordPress.
• Supports multiple email fields.
  Set different email fields as recipient and BCC.

• Use merge tags in the email body.
  Use content from the form entry in the message.
• Awesome support.
  We’re here to help! And we mean it.