US Patent 11652766 Dynamic customized electronic message content generation

Discussed herein are dynamically generated, customized electronic messages based on, for example, data representing attributes of an electronic message to be generated for an intended recipient; and, in response to receiving the data, sending custom content triggering data based on the attributes, where the custom content triggering data represent at least a dynamic portion of customized content to be added subsequently into the electronic message while the electronic message is rendered for display to the intended recipient; generating the electronic message content, which includes the custom content triggering data; and sending the electronic message to the intended recipient; and, in response to receiving the custom content triggering data, determining attributes of the electronic message based on the custom content triggering data; and generating the dynamic portion of customized content based on the electronic message attributes.