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package main

import (
  "log"
  "net/smtp"
)

func main() {
  // Set up authentication information.
  auth := smtp.PlainAuth(
    "",              // identity
    "meu_usuario",   //username
    "minha_senha",   //password
    "smtplw.com.br", //host
  )
  // Connect to the server, authenticate, set the sender and recipient,
  // and send the email all in one step.
  err := smtp.SendMail(
    "smtplw.com.br:587",
    auth,
    "maria@gmail.com",
    []string{"joao.dias@gmail.com"},
    []byte("This is the email body."),
  )
  if err != nil {
    log.Fatal(err)
  }
}