[TOC] ## 实例 ``` // Connect to the remote SMTP server. c, err := smtp.Dial("mail.example.com:25") if err != nil { log.Fatal(err) } // Set the sender and recipient first if err := c.Mail("sender@example.org"); err != nil { log.Fatal(err) } if err := c.Rcpt("recipient@example.net"); err != nil { log.Fatal(err) } // Send the email body. wc, err := c.Data() if err != nil { log.Fatal(err) } _, err = fmt.Fprintf(wc, "This is the email body") if err != nil { log.Fatal(err) } err = wc.Close() if err != nil { log.Fatal(err) } // Send the QUIT command and close the connection. err = c.Quit() if err != nil { log.Fatal(err) } ```