You can define a queue and a schedule, so then you can use the @queue parameter to add messages to this pre-scheduled queue.

In this example, we setup a queue called HalfHour that runs every 30 minutes. When you click the Run Demo 5 button, a message is added to this queue. When the queue is processed, all messages queued for a particular recipient are consolidate into one message and sent out.

We recommend that you click the Run Demo 5 button a couple of times in order to add more than one message to the queue, so you can observe how SqlAnswersMail consolidates multiple messages into one email.