首先 打开邮件
2 找到 》设置 》账户 选项卡
这里会根据你的账号安全添加密保 ，添加密保 后 会给你 一个 密钥
（2）验证密保
（3）获取授权码
这个授权码 一会会用到
提前须知 ：ssl, tls, 是不同的协议
首先 我们用starttls 协议 写 一个 简单的 例子 1
============= = 1 start =====================
package main
import (
"net/smtp"
"strings"
"fmt"
)
func SendToMail(user, pwd, host, to, subject, body, mailtype string) error{
hp := strings.Split(host, ":")
auth := smtp.PlainAuth("", user, pwd, hp[0])
var content_type string
if mailtype == "html" {
content_type = "Content-Type: text/" + mailtype + "; charset=UTF-8"
} else {
content_type = "Content-Type: text/plain" + "; charset=UTF-8"
}
msg := []byte("To: " + to + "\r\nFrom: " + user + "\r\nSubject: " +subject+ "\r\n" + content_type + "\r\n\r\n" + body)
send_to := strings.Split(to, ";")
err := smtp.SendMail(host, auth, user, send_to, msg)
return err
}
func main(){
user := "2677031999@qq.com" // 你开通smtp邮箱的 邮箱的地址
pwd := "gv**************jfh" //这里填你自己的授权码
host :="smtp.qq.com:25"
to := "2677031999@qq.com" // 目标地址
subject := "使用Golang发送邮件"
body := `
<html>
<body>
<h3>
"Test send to email"
</h3>
</body>
</html>
`
fmt.Println("SEND EMAIL ...")
err :=SendToMail(user,pwd,host,to,subject,body,"html")
if err != nil{
fmt.Println("发送邮件错误！")
fmt.Println(err);
}else{
fmt.Println("发送成功")
}
}
======================= 1 end ====================
好了 由于 很多时侯 需要用到 ssl 协议
==== 2 start ==========
package main
import (
"fmt"
"net/smtp"
"crypto/tls"
"net"
"log"
)
func main(){
host :="smtp.qq.com"
port :=465
email := "2677031999@qq.com"
pwd := "gvd************fh" // 这里填你的授权码
toEmail := "2677031999@qq.com" // 目标地址
header := make(map[string]string)
header["From"] = "test"+"<" +email+">"
header["To"] = toEmail
header["Subject"] = "邮件标题11111"
header["Content-Type"] = "text/html;chartset=UTF-8"
body := "这是一封golang 发来的邮件"
message := ""
for k,v :=range header{
message += fmt.Sprintf("%s:%s\r\n",k,v)
}
message +="\r\n"+body
auth :=smtp.PlainAuth(
"",
email,
pwd,
host,
)
err := SendMailUsingTLS(
fmt.Sprintf("%s:%d", host, port),
auth,
email,
[]string{toEmail},
[]byte(message),
)
if err !=nil{
panic(err)
}
}
//return a smtp client
func Dial(addr string) (*smtp.Client, error) {
conn, err := tls.Dial("tcp", addr, nil)
if err != nil {
log.Panicln("Dialing Error:", err)
return nil, err
}
//分解主机端口字符串
host, _, _ := net.SplitHostPort(addr)
return smtp.NewClient(conn, host)
}
//参考net/smtp的func SendMail()
//使用net.Dial连接tls(ssl)端口时,smtp.NewClient()会卡住且不提示err
//len(to)>1时,to[1]开始提示是密送
func SendMailUsingTLS(addr string, auth smtp.Auth, from string,
to []string, msg []byte) (err error) {
//create smtp client
c, err := Dial(addr)
if err != nil {
log.Println("Create smpt client error:", err)
return err
}
defer c.Close()
if auth != nil {
if ok, _ := c.Extension("AUTH"); ok {
if err = c.Auth(auth); err != nil {
log.Println("Error during AUTH", err)
return err
}
}
}
if err = c.Mail(from); err != nil {
return err
}
for _, addr := range to {
if err = c.Rcpt(addr); err != nil {
return err
}
}
w, err := c.Data()
if err != nil {
return err
}
_, err = w.Write(msg)
if err != nil {
return err
}
err = w.Close()
if err != nil {
return err
}
return c.Quit()
}
======================= 2 end ==============================
结果
其实你观察 两种方法 很类似 golang官方库net/smtp支持的是starttls, , 要想支持 ssl将上面例子 只是将net 的 Dial 换成 tls.
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