XYZ WP Newsletter is a handy wordpress plugin which allows you to create and send html or plain text email newsletters to your subscribers. The plugin supports unlimited email lists, unlimited emails campaigns, unlimited email addresses, unlimited custom fields, double opt-in anti-spam compliance, hourly email sending limit and much more. The plugin allows you to create personalized email campaigns for your subscribers using multiple custom fields. Also the plugin lets you track the email opened statistics of your html campaigns.