user: How is an electric field produced?

assistant: The presence of either a positive or negative electric charge produces an electric field.

user: What is SMTP?

assistant: The Simple Mail Transfer Protocol (SMTP) is an Internet standard communication protocol for electronic mail transmission. Mail servers and other message transfer agents use SMTP to send and receive mail messages. User-level email clients typically use SMTP only for sending messages to a mail server for relaying, and typically submit outgoing email to the mail server on port 587 or 465 per RFC 8314. For retrieving messages, IMAP (which replaced the older POP3) is standard, but proprietary servers also often implement proprietary protocols.

user: Why capri is so famous

assistant: Capri is famous Italian island for it's nice ocean color and it's mountain view