内容简介：SSL协议发送邮件的方法
SSL协议发送邮件的方法
package utils
import (
"crypto/tls"
"fmt"
"log"
"net/smtp"
"strings"
)
const Email_User = "*******@163.com"
const Email_Password = "***********"
const Email_Host = "smtp.163.com"
const Email_Port = "465"
const Email_Name = "测试"
const Email_Subject = "测试验证码"
type Mail struct {
senderId string
toIds []string
subject string
body string
}
type SmtpServer struct {
host string
port string
}
func EmailSendCode(nickname, to, code string) error {
if nickname != "" {
nickname = nickname + "，"
}
body := `
<html>
<body>
<h3>
`+nickname+`您好：
</h3>
非常感谢您使用`+Email_Name+`，您的邮箱验证码为：<br/>
<b>`+code+`</b><br/>
此验证码有效期30分钟，请妥善保存。<br/>
如果这不是您本人的操作，请忽略本邮件。<br/>
</body>
</html>
`
return SendToMail(to, Email_Subject, body)
}
func (s *SmtpServer) ServerName() string {
return s.host + ":" + s.port
}
func (mail *Mail) BuildMessage() string {
message := ""
message += fmt.Sprintf("From: %s<%s>\r\n", Email_Name, mail.senderId)
if len(mail.toIds) > 0 {
message += fmt.Sprintf("To: %s\r\n", strings.Join(mail.toIds, ";"))
}
message += fmt.Sprintf("Subject: %s\r\n", mail.subject)
message += "Content-Type: text/html; charset=UTF-8"
message += "\r\n\r\n" + mail.body
return message
}
func SendToMail(to, subject, body string) error {
mail := Mail{}
mail.senderId = Email_User
mail.toIds = strings.Split(to, ";")
mail.subject = Email_Subject
mail.body = body
messageBody := mail.BuildMessage()
smtpServer := SmtpServer{host: Email_Host, port: Email_Port}
//build an auth
auth := smtp.PlainAuth("", mail.senderId, Email_Password, smtpServer.host)
// Gmail will reject connection if it's not secure
// TLS config
tlsconfig := &tls.Config{
InsecureSkipVerify: false,
ServerName: smtpServer.host,
}
conn, err := tls.Dial("tcp", smtpServer.ServerName(), tlsconfig)
if err != nil {
return err
}
client, err := smtp.NewClient(conn, smtpServer.host)
if err != nil {
return err
}
// step 1: Use Auth
if err = client.Auth(auth); err != nil {
return err
}
// step 2: add all from and to
if err = client.Mail(mail.senderId); err != nil {
return err
}
for _, k := range mail.toIds {
if err = client.Rcpt(k); err != nil {
return err
}
}
// Data
w, err := client.Data()
if err != nil {
return err
}
_, err = w.Write([]byte(messageBody))
if err != nil {
return err
}
err = w.Close()
if err != nil {
return err
}
client.Quit()
log.Println("Mail sent successfully")
return nil
}
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