Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media for controlled response. The system provides as a prompt to a plurality of large language models (LLMs) instructions to generate an email message. The system receives a first generated electronic message from the plurality of LLMs for transmission to an e-mail user address. The system transmits, via a server, the first generated electronic message, via a network, to the email user address. The system receives, via the network, a response email message associated with the email user address. The system provides, by a server, as a prompt to the plurality of LLMs, instructions to generate a second email message based on the received response email response. The system receives a second generated electronic message from the plurality of LLMs for transmission to the e-mail user address. The system transmits, via the server, the second generated electronic message, via the network, to the email user address.