Event Espresso is the best WordPress event registration and ticketing plugin available. We offer the most powerful features like a Messages Activity and Queue System that is not offered in any other event registration and ticketing plugin for WordPress. This powerful system makes sure your server is not over-burdened with sending lots of messages during busy event registration periods and allows you to view the status of messages, resend messages, and delete messages from the Message Activity list table. The Messages Queue system is just an example of our awesome features.