Im not receaving an email Dow anyone knows why?

[maloochpich mgh]

Hello ,
Im running this code and not be able to receiving any email , does anyone know where is the problem?

at_exit do

  Mail.defaults do
    delivery_method :smtp, address:"myaddress", openssl_verify_mode:'none'
  end

  mail = Mail.new do
    from     'te...@email.com'
    to       'te...@email.com'
    subject  'Here is the image you wanted'
    body     File.read(ROOT_DIR + '/result/test.txt')
  end

  mail.deliver!
end