arm_change_email_content

This Filter provides access to modify email message/content before sending email to user.

Hook Type: Filter
Usage:
add_filter( 'arm_change_email_content', 'your_function');
function your_function($message) {
    //$message Email Content
    $message .= ' If you have any query, please contact site administrator.';
    return $message;
}
Parameters:
$message
Email Content