In one general aspect, a tangible computer-readable storage medium can be configured to store instructions that when executed cause a processor to perform a process. The instructions can include instructions to receive an indicator that at least a portion of a source message has been produced using a source module, and instructions to send to the source module, in response to the indicator, an extraction module configured to assign an attribute value to content of the source message. The attribute value can represent a contextual function of the content within the source message. The instructions can include instructions to receive a content package including the content and the attribute value assigned to the content, and produce a plurality of endpoint-specific messages associated with a plurality of endpoints based on a plurality of message templates and the attribute value assigned to the content within the content package.