Go - mail

 package main

import (

  "crypto/tls"

  "fmt"

  gomail "gopkg.in/gomail.v2"

)

func main() {

  from := "eve@hello.com.tw"

  to := "eve@gmail.com"

  user := "eve"

  pwd := "pwd"

  host := `smtp.hello.com.tw`

  port := 25

  m := gomail.NewMessage()

  m.SetHeader("From", from)

  m.SetHeader("To",to)

  m.SetHeader("Subject", "Hello!")

  m.SetBody("text/html", "Hello <b>Eve</b>!")

d := gomail.NewDialer(host, port, user, pwd)

//x509: certificate signed by unknown authority的解决方法

  d.TLSConfig = &tls.Config{InsecureSkipVerify:true}

  if err := d.DialAndSend(m); err != nil {

    panic(err)

  }

  fmt.Println("mail send successfully!")

}

gmail need to enable

1. POP 
2. IMAP 
3. less secure apps

need to enable "less secure apps" on your Google Account

var (

from = "coco@gmail.com"

to = from

user = from

pwd = "gpwd"

host = `smtp.gmail.com`

port = 587

)