发送邮件是实际业务中经常会用到的一个功能，而在Go语言中实现发送邮件的库也有很多,这篇文章将介绍go语言中如何发邮件。
func SendEduEmail(user, password, host, to, subject, body, mailtype string) error {
hp := strings.Split(host, ":")
auth := smtp.PlainAuth("", user, password, 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 + "rnFrom: " + user + ">rnSubject: " + subject + "rn" + content_type + "rnrn" + body)
send_to := strings.Split(to, ";")
err := smtp.SendMail(host, auth, user, send_to, msg)
return err
}
package main
import (
"fmt"
)
func main() {
send_email_test1()
}
iunc send_email_test1() {
var to = []string{"15735177116@163.com", "201800910862@b.sxmu.edu.cn"}
from := "1271570224@qq.com"
nickname := "张亚飞"
secret := "xxxxxxxx"
host := "smtp.qq.com"
port := 25
subject := "Perfect Vue Admin 发送邮件测试"
body := "测试内容"
if err := go_email.SendEmail(from, to, secret, host, nickname, subject, body, port, true); err != nil{
fmt.Println("发送失败: ", err)
}else {
fmt.Println("发送成功")
}
}
// Email is the type used for email messages
type Email struct {
ReplyTo []string
From string
To []string
Bcc []string
Cc []string
Subject string
Text []byte // Plaintext message (optional)
HTML []byte // Html message (optional)
Sender string // override From as SMTP envelope sender (optional)
Headers textproto.MIMEHeader
Attachments []*Attachment
ReadReceipt []string
}
调用Send方法发送邮件，第一个参数是你的发件人邮箱的SMTP域名+端口号，第二个参数用于身份认证
1
e.Send("smtp.163.com:25", smtp.PlainAuth("", "pingyeaa@163.com", "<你的密码>", "smtp.163.com"))
smtp.PlainAuth
CC全称是Carbon Copy，意为抄送，BCC全称Blind Carbon Copy，意为暗抄送，收件人看不到被暗抄送给了谁。
e := email.NewEmail()
e.Cc = []string{"xxxxxxx@qq.com"}
e.Bcc = []string{"xxxxxxx@qq.com"}
可以实例化的时候直接赋值
e := &email.Email{
From: "平也 <pingyeaa@163.com>",
To: []string{"xxxxxxx@qq.com"},
Subject: "发现惊天大秘密！",
Text: []byte("平也好帅好有智慧哦~"),
}
发送附件非常简单，直接传入文件名即可
e.AttachFile("attachment.txt")
由于频繁发送邮件会不断的与SMTP服务器建立连接，比较影响性能，所以email提供了连接池的功能
auth := smtp.PlainAuth("", "pingyeaa@163.com", "<你的密码>", "smtp.163.com")
p, _ := email.NewPool("smtp.163.com:25", 4, auth)
创建成功后，就可以借助连接池来发送邮件
e := email.NewEmail()
e.From = "平也 <pingyeaa@163.com>"
e.To = []string{"xxxxxx@qq.com"}
e.Subject = "发现惊天大秘密！"
e.Text = []byte("平也好帅好有智慧哦~")
p.Send(e, 10*time.Second)
package go_email
import (
"crypto/tls"
"fmt"
"Github.com/jordan-wright/email"
"log"
".NET/smtp"
"strings"
"time"
)
var (
pool *email.Pool
maxClient int = 10
)
func SendEmail(from string, to []string, secret string, host string, nickname string, subject string, body string, port int, ssl bool) error {
auth := smtp.PlainAuth("", from, secret, host)
e := email.NewEmail()
e.From = fmt.Sprintf("%s<%s>", nickname, from)
e.To = to
e.Subject = subject
e.HTML = []byte(body)
hostAddr := fmt.Sprintf("%s:%d", host, port)
if ssl {
return e.SendWithTLS(hostAddr, auth,&tls.Config{ServerName: host})
}
return e.Send(hostAddr, auth)
}
func SendEmailWithFile(from string, to []string, secret string, host string, nickname string, subject string, body string, port int, ssl bool,attach string) error {
auth := smtp.PlainAuth("", from, secret, host)
e := email.NewEmail()
e.From = fmt.Sprintf("%s<%s>", nickname, from)
e.To = to
e.Subject = subject
e.HTML = []byte(body)
if attach != ""{
_,_ = e.AttachFile(attach)
}
hostAddr := fmt.Sprintf("%s:%d", host, port)
if ssl {
return e.SendWithTLS(hostAddr, auth,&tls.Config{ServerName: host})
}
return e.Send(hostAddr, auth)
}
func SendEmailWithPool(to []string, from, secret, host, subject, body, nickname string, port int) (err error) {
hostAddr := fmt.Sprintf("%s:%d", host, port)
auth := smtp.PlainAuth("", from, secret, host)
if pool == nil {
pool, err = email.NewPool(hostAddr, maxClient, auth)
if err != nil {
log.Fatal(err)
}
}
e := &email.Email{
From: fmt.Sprintf("%s<%s>", nickname, from),
To: to,
Subject: subject,
Text: []byte(body),
}
return pool.Send(e, 5 * time.Second)
}
func SendEmailWithPoolAndFile(to []string, from, secret, host, subject, body, nickname string, port int, attach string) (err error) {
hostAddr := fmt.Sprintf("%s:%d", host, port)
auth := smtp.PlainAuth("", from, secret, host)
if pool == nil {
pool, err = email.NewPool(hostAddr, maxClient, auth)
if err != nil {
log.Fatal(err)
}
}
e := &email.Email{
From: fmt.Sprintf("%s<%s>", nickname, from),
To: to,
Subject: subject,
Text: []byte(body),
}
if attach != "" {
_, _ = e.AttachFile(attach)
}
return pool.Send(e, 5 * time.Second)
}
package main
import (
"fmt"
go_email "go_dev/go_email/email"
)
func main() {
//send_email_test1()
//send_email_test2()
//send_email_test3()
send_email_test4()
}
func send_email_test4() {
var to = []string{"15735177116@163.com", "1271570224@qq.com"}
from := "201800910862@b.sxmu.edu.cn"
nickname := "张亚飞"
secret := "xxxxxxxx"
host := "smtp.exmail.qq.com"
port := 25
subject := "Perfect Vue Admin 发送邮件测试"
body := "测试内容"
if err :=
go_email.SendEmailWithPoolAndFile(to, from, secret, host, subject, body, nickname, port, "简称.txt"); err != nil{
fmt.Println("发送失败: ", err)
}else {
fmt.Println("发送成功")
}
}
func send_email_test3() {
var to = []string{"15735177116@163.com", "201800910862@b.sxmu.edu.cn"}
from := "1271570224@qq.com"
nickname := "张亚飞"
secret := "vsloiltxbxyzgeii"
host := "smtp.qq.com"
port := 25
subject := "Perfect Vue Admin 发送邮件测试"
body := "测试内容"
if err :=
go_email.SendEmailWithPoolAndFile(to, from, secret, host, subject, body, nickname, port, "简称.txt"); err != nil{
fmt.Println("发送失败: ", err)
}else {
fmt.Println("发送成功")
}
}
func send_email_test2() {
to := "1271570224@qq.com;15735177116@163.com"
user := "201800910862@b.sxmu.edu.cn"
password := "xxxxxx3"
host := "smtp.exmail.qq.com:25"
//host := "smtp.exmail.qq.com"
subject := "Perfect Vue Admin 发送邮件测试"
body := "测试内容"
if err := go_email.SendEduEmail(user, password, host, to, subject, body, "html"); err != nil{
fmt.Println("发送失败: ", err)
}else {
fmt.Println("发送成功")
}
}
func send_email_test1() {
var to = []string{"15735177116@163.com", "201800910862@b.sxmu.edu.cn"}
from := "1271570224@qq.com"
nickname := "张亚飞"
secret := "xxxxxx"
host := "smtp.qq.com"
port := 25
subject := "Perfect Vue Admin 发送邮件测试"
body := "测试内容"
if err := go_email.SendEmail(from, to, secret, host, nickname, subject, body, port, true); err != nil{
fmt.Println("发送失败: ", err)
}else {
fmt.Println("发送成功")
}
163.com:
POP3服务器地址:pop.163.com（端口：110）
SMTP服务器地址:smtp.163.com（端口：25）
126邮箱：
POP3服务器地址:pop.126.com（端口：110）
SMTP服务器地址:smtp.126.com（端口：25）
139邮箱：
POP3服务器地址：POP.139.com（端口：110）
SMTP服务器地址：SMTP.139.com(端口：25)
QQ邮箱：
POP3服务器地址：pop.qq.com（端口：110）
SMTP服务器地址：smtp.qq.com （端口：25）
QQ企业邮箱 ：
POP3服务器地址：pop.exmail.qq.com （SSL启用 端口：995）
SMTP服务器地址：smtp.exmail.qq.com（SSL启用 端口：587/465）
gmail(google.com) ：
POP3服务器地址:pop.gmail.com（SSL启用 端口：995）
SMTP服务器地址:smtp.gmail.com（SSL启用 端口：587）
Foxmail：
POP3服务器地址:POP.foxmail.com（端口：110）
SMTP服务器地址:SMTP.foxmail.com（端口：25）
sina.com:
POP3服务器地址:pop3.sina.com.cn（端口：110）
SMTP服务器地址:smtp.sina.com.cn（端口：25）
sinaVIP：
POP3服务器:pop3.vip.sina.com （端口：110）
SMTP服务器:smtp.vip.sina.com （端口：25）
sohu.com:
POP3服务器地址:pop3.sohu.com（端口：110）
SMTP服务器地址:smtp.sohu.com（端口：25）
yahoo.com:
POP3服务器地址:pop.mail.yahoo.com
SMTP服务器地址:smtp.mail.yahoo.com
yahoo.com.cn:
POP3服务器地址:pop.mail.yahoo.com.cn（端口：995）
SMTP服务器地址:smtp.mail.yahoo.com.cn（端口：587 ）
HotMail ：
POP3服务器地址：pop3.live.com （端口：995）
SMTP服务器地址：smtp.live.com （端口：587）
263.net:
POP3服务器地址:pop3.263.net（端口：110）
SMTP服务器地址:smtp.263.net（端口：25）
263.net.cn:
POP3服务器地址:pop.263.net.cn（端口：110）
SMTP服务器地址:smtp.263.net.cn（端口：25）
x263.net:
POP3服务器地址:pop.x263.net（端口：110）
SMTP服务器地址:smtp.x263.net（端口：25）
21cn.com:
POP3服务器地址:pop.21cn.com（端口：110）
SMTP服务器地址:smtp.21cn.com（端口：25）
china.com:
POP3服务器地址:pop.china.com（端口：110）
SMTP服务器地址:smtp.china.com（端口：25）
tom.com:
POP3服务器地址:pop.tom.com（端口：110）
SMTP服务器地址:smtp.tom.com（端口：25）
etang.com:
POP3服务器地址:pop.etang.com
SMTP服务器地址:smtp.etang.com
京公网安备 11010802035086号