1. A method comprising: obtaining at least one destination identifier associated with a tentative-message-content; obtaining one or more evaluation parameters, the one or more evaluation parameters including at least one indication of resource status information, at least partially based on the at least one destination identifier; evaluating the tentative-message-content at least partially based on the at least one indication of resource status information associated with the at least one destination identifier, including at least: accessing at least one of a virtual or an actual resource inventory; aggregating one or more virtual or actual resource allocations; and computing a quantity of a resource remaining for future allocation based on the aggregating one or more virtual or actual resource allocations; and transmitting at least a tentative-message-content evaluation result, including at least transmitting an indication of the at least one indication of resource status information associated with the tentative-message-content evaluation result, wherein at least one of the obtaining at least one destination identifier, obtaining one or more evaluation parameters, evaluating, or transmitting is at least partially implemented using at least one processing device.