mail function does not work for me

[Hyxion14]

Hello, I am trying to use the mail function, but it doesn't work for me.

This is the function setting:


function mail(to, subject, message)
  -- make sure these settings are correct
  local settings = {
    -- "from" field, only e-mail must be specified here
    from = 'LM-ANA@x-domotica.com',
    -- smtp username
    user = 'LM-ANA@x-domotica.com',
    -- smtp password
    password = '................',
    -- smtp server
    server = 'mail.x-domotica.com',
    -- smtp server port
    port = 587,
    -- enable tls, required for gmail smtp
    secure = 'none',
    starttls = false,
  }


Nor does it record anything in Log.

The only message I have is in the error log and it says:

Library socket / tp: 0: attempt to index a nil value
stack traceback:
  [C]: in function 'mail'
  User script: 8: in main chunk


Why dont work?

Thanks very much for your help.