用Lua发送电子邮件 [英] Sending Email With Lua

问题描述

您将如何使用Lua发送电子邮件?与我合作的团队有一个邮件服务器，这有什么关系吗?这是我正在使用的代码:

How would you send an email using Lua? The team I'm working with have a mail server, is that of any relevance? Here is the code I'm using:

function send_email (email_to, email_subject, email_message)
  local SMTP_SERVER = "mail.server.com"
  local SMTP_AUTH_USER = "[e-mail]"
  local SMTP_AUTH_PW = "password"
  local SMTP_PORT = "587"
  local USER_SENDING = "[e-mail]"

  local smtp = require("socket.smtp")
  local rcpt = {email_to}
  local mesgt = {
    headers = {
      to = email_to,
      from = USER_SENDING,
      subject = email_subject
    },
      body = email_message
  }
  local r, e = smtp.send{
    from  = USER_SENDING,
    rcpt  = rcpt,
    source  = smtp.message(mesgt),
    server = SMTP_SERVER,
    port = SMTP_PORT,
    user = SMTP_AUTH_USER,
    password = SMTP_AUTH_PW
  }
end

推荐答案

使用您的示例看起来正确，请仔细检查SMTP设置并记录结果:

Your example looks correct, double check the SMTP settings and log the results:

local r, e = smtp.send{
  from  = USER_SENDING,
  rcpt  = rcpt,
  source  = smtp.message(mesgt),
  server = SMTP_SERVER,
  port = SMTP_PORT,
  user = SMTP_AUTH_USER,
  password = SMTP_AUTH_PW
}

-- Log SMTP results and potential errors
print(r, e)

此外，请确保使用正确链接SMTP邮件.LTN12模块包含多个部分的API:

Also, ensure that you're properly chaining your SMTP message using the LTN12 module API when it is multipart:

  body = ltn12.source.chain(
    ltn12.source.file(io.open("image.png", "rb")),
    ltn12.filter.chain(
      mime.encode("base64"),
      mime.wrap()
    )
  )

或EOL的 Mime模块 API:

  body = mime.eol(0, [[
    Lines in a message body should always end with CRLF. 
    The smtp module will *NOT* perform translation. However, the 
    send function *DOES* perform SMTP stuffing, whereas the message
    function does *NOT*.
  ]])

LuaSocket SMTP API文档.

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