go 邮箱发送邮件

准备

1. 谷歌邮箱一个
   

2. 进入谷歌邮箱，搜索【应用专用密码】
   

3. 生成密码并复制

编写代码

使用go语言库：github.com/jordan-wright/email

import (
	"fmt"
	"github.com/jordan-wright/email"
	"net/smtp"
	"net/textproto"
)

func sendEmail(from string, to []string) {
	e := &email.Email{
		To:      to,
		From:    fmt.Sprintf("测试邮箱 <%s>", from),
		Subject: "测试邮件 2 - 请忽略",
		Text:    []byte("这是一封简单的测试邮件，请忽略。"),
		HTML:    []byte("<h1>这是一封简单的测试邮件，请忽略。</h1>"),
		Headers: textproto.MIMEHeader{},
	}
	err := e.Send("smtp.gmail.com:587", smtp.PlainAuth("", "l397608301@gmail.com", "刚刚生成复制的【应用专用密码】", "smtp.gmail.com"))
	if err != nil {
		fmt.Println(err)
		return
	}
	fmt.Println("发送成功")
}

测试

func TestSend(t *testing.T) {
	from := "l397608301@gmail.com"
	to := []string{"397608301@qq.com"}

	sendEmail(from, to)
}