The emails sent from the theme can be managed from Theme Options > Email Management > Email Content
You can leave blank the subject field and the notification will NOT be sent. This applies to any notification from Theme Options > Advanced > Email Management.
In this section, you can change the email content and add your own details.
To avoid losing HTML code use text mode and <br class=””> tag for new line, <p class=””> for a new paragraph, <span class=””> for styling