Golang 从腾讯企业邮箱的发送邮件和一个 HTML 模板。
| package main | |
| import ( | |
| "crypto/tls" | |
| "fmt" | |
| "log" | |
| "net" | |
| "net/smtp" | |
| ) | |
| func main() { | |
| host := "smtp.exmail.qq.com" | |
| port := 465 | |
| email := "xxx" | |
| password := "xxx" | |
| toEmail := "xxx@gmail.com" | |
| header := make(map[string]string) | |
| header["From"] = "Dockboard " + "<" + email + ">" | |
| header["To"] = toEmail | |
| header["Subject"] = "Dockboard 帐户激活邮件" | |
| header["Content-Type"] = "text/html; charset=UTF-8" | |
| body := ` | |
| <table border="0" width="100%" cellpadding="0" cellspacing="0" bgcolor="#E6E5E7"> | |
| <tr> | |
| <td height="50"></td> | |
| </tr><!-- ======= end top header ======= --> | |
| <!-- ======= header ======= --> | |
| <tr> | |
| <td align="center"> | |
| <table border="0" align="center" width="590" cellpadding="0" cellspacing="0" bgcolor="#FFFFFF" class="container590"> | |
| <tr> | |
| <td align="center"> | |
| <table border="0" align="center" width="590" cellpadding="0" cellspacing="0" class="container590"> | |
| <tr> | |
| <td> | |
| <table border="0" align="left" cellpadding="0" cellspacing="0" width="190" bgcolor="#2C3E50" class="logo"> | |
| <tr> | |
| <td height="25" style="font-size: 25px; line-height: 25px;"> </td> | |
| </tr> | |
| <tr> | |
| <td align="center"> | |
| <table border="0" cellpadding="0" cellspacing="0"> | |
| <tr> | |
| <td align="center"><a href="" style="display: block; border-style: none !important; border: 0 !important;"><img width="194" height="42" border="0" style="display: block; width: 194px; height: 42px;" src="http://docker.u.qiniudn.com/dockboard_logo_194_42_email.png" alt="dockboard.org" /></a></td> | |
| </tr> | |
| </table> | |
| </td> | |
| </tr> | |
| <tr> | |
| <td height="25" style="font-size: 25px; line-height: 25px;"> </td> | |
| </tr> | |
| </table> | |
| <table border="0" align="left" cellpadding="0" cellspacing="0" class="hideforiphone"> | |
| <tr> | |
| <td height="20" width="20" style="font-size: 20px; line-height: 20px;"> </td> | |
| </tr> | |
| </table> | |
| <table border="0" align="right" cellpadding="0" cellspacing="0" class="date"> | |
| <tr> | |
| <td align="center" valign="middle"> | |
| <table width="300" border="0" cellpadding="0" cellspacing="0" align="center" class="date-inside"> | |
| <tr> | |
| <td height="30" style="font-size: 30px; line-height: 40px;"> </td> | |
| </tr> | |
| <tr> | |
| <td align="right" style="color: #959da6; font-size: 16px; font-weight: normal; font-family:'Source Sans Pro' Arial, sans-serif;">Dockboard Hub / Build / CI / CD </td> | |
| </tr> | |
| <tr> | |
| <td height="30" style="font-size: 30px; line-height: 30px;"> </td> | |
| </tr> | |
| </table> | |
| </td> | |
| </tr> | |
| </table> | |
| </td> | |
| </tr> | |
| </table> | |
| </td> | |
| </tr> | |
| </table> | |
| </td> | |
| </tr><!-- ======= end header ======= --> | |
| <tr> | |
| <td height="30" style="font-size: 30px; line-height: 30px;"> </td> | |
| </tr> | |
| <!-- ======= Main section ======= --> | |
| <!-- ======= CTA ======= --> | |
| <tr> | |
| <td align="center"> | |
| <table border="0" align="center" width="590" cellpadding="0" cellspacing="0" bgcolor="#FFFFFF" style="border-collapse:collapse; mso-table-lspace:0pt; mso-table-rspace:0pt;" class="container590"> | |
| <tr> | |
| <td height="45" style="font-size: 45px; line-height: 45px;"> </td> | |
| </tr> | |
| <tr> | |
| <td align="center" style="color: #222222; font-size: 24px; font-family: 'Ubuntu', Arial, sans-serif; mso-line-height-rule: exactly;" class="cta-header"> | |
| <div> | |
| 请激活您的 Dockboard 帐户 | |
| </div> | |
| </td> | |
| </tr> | |
| <tr> | |
| <td height="25" style="font-size: 25px; line-height: 25px;"> </td> | |
| </tr> | |
| <tr> | |
| <td> | |
| <table border="0" align="center" width="490" cellpadding="0" cellspacing="0" bgcolor="#FFFFFF" class="container580"> | |
| <tr> | |
| <td align="center" style="color: #adb3ba; font-size: 16px; font-weight: 300; font-family: 'Source Sans Pro', Arial, sans-serif; mso-line-height-rule: exactly; line-height: 24px;"> | |
| <div style="line-height: 24px;"> | |
| 感谢你注册 Dockboard 帐户！请点击下面的激活按钮激活帐号并登录到控制台设置个人信息。 | |
| </div> | |
| </td> | |
| </tr> | |
| </table> | |
| </td> | |
| </tr> | |
| <tr> | |
| <td height="40" style="font-size: 40px; line-height: 40px;"> </td> | |
| </tr> | |
| <tr> | |
| <td align="center"><a href="" style="display: block; width: 140px; height: 40px; border-style: none !important; border: 0 !important;"><img width="140" height="40" border="0" style="display: block; width: 140px; height: 40px;" src="http://docker.u.qiniudn.com/email_active-btn.png" alt="激活帐号" /></a></td> | |
| </tr> | |
| <tr> | |
| <td height="45" style="font-size: 45px; line-height: 45px;"> </td> | |
| </tr> | |
| </table> | |
| </td> | |
| </tr><!-- ======= end CTA ======= --> | |
| <tr> | |
| <td height="10" style="font-size: 10px; line-height: 10px;"> </td> | |
| </tr> | |
| <!-- ======= footer ======= --> | |
| <tr> | |
| <td align="center"> | |
| <table border="0" align="center" width="590" cellpadding="0" cellspacing="0" bgcolor="#FFFFFF" class="container590"> | |
| <tr> | |
| <td align="center"> | |
| <table border="0" align="center" width="560" cellpadding="0" cellspacing="0" class="container580"> | |
| <tr> | |
| <td height="20" style="font-size: 20px; line-height: 20px;"> </td> | |
| </tr> | |
| <tr> | |
| <td></td> | |
| <td align="center"> | |
| <table border="0" align="left" cellpadding="0" cellspacing="0" style="border-collapse:collapse; mso-table-lspace:0pt; mso-table-rspace:0pt;" class="container580"> | |
| <tr> | |
| <td align="center" style="color: #adb3ba; font-size: 13px; font-family: 'Source Sans pro', Arial, sans-serif; line-height: 30px;"><span style="color: #222222;">dockboard</span> © Copyright 2014 . All Rights Reserved</td> | |
| </tr> | |
| </table> | |
| <table border="0" width="10" align="left" cellpadding="0" cellspacing="0" style="border-collapse:collapse; mso-table-lspace:0pt; mso-table-rspace:0pt;"> | |
| <tr> | |
| <td height="20" width="10" style="font-size: 20px; line-height: 20px;"> </td> | |
| </tr> | |
| </table> | |
| <table border="0" align="right" cellpadding="0" cellspacing="0" style="border-collapse:collapse; mso-table-lspace:0pt; mso-table-rspace:0pt;" class="container580"> | |
| <tr> | |
| <td align="center" style="color: #adb3ba; font-size: 13px; font-family: 'Source Sans pro', Arial, sans-serif; line-height: 30px;"><a href="" style="color: #adb3ba; text-decoration: none;">Privacy Policy</a> <span style="font-weight: 700; color: #2c3e50;">/</span> <a href="" style="color: #adb3ba; text-decoration: none;">Terms of Use</a> <span style="font-weight: 700; color: #2c3e50;">/</span> <a href="" style="color: #adb3ba; text-decoration: none;">Contact</a></td> | |
| </tr> | |
| </table> | |
| </td> | |
| </tr> | |
| <tr> | |
| <td height="20" style="font-size: 20px; line-height: 20px;"> </td> | |
| </tr> | |
| </table> | |
| </td> | |
| </tr> | |
| </table> | |
| </td> | |
| </tr> | |
| <tr> | |
| <td height="30" style="font-size: 30px; line-height: 30px;"> </td> | |
| </tr> | |
| <!-- ======= end footer ======= --> | |
| </table> | |
| ` | |
| message := "" | |
| for k, v := range header { | |
| message += fmt.Sprintf("%s: %s\r\n", k, v) | |
| } | |
| message += "\r\n" + body | |
| auth := smtp.PlainAuth( | |
| "", | |
| email, | |
| password, | |
| 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.Println("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() | |
| } |
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