Magento EE 1.14.2.2
We have two production servers behind a load balancer. Session persistence is maintained by the load balancer so you stay connected to the server while making an order. Normally the customer enters an order and receives an order confirmation email sent by that same server. A few days ago both servers started sending order confirmations. Literally nothing has changed on the servers except the addition of a few products and new customer orders.
Anyone else seen this before? Any idea where to start looking for a solution?