trabajo-afectivo/app/models/channel/smtp.rb

class Channel::SMTP < Channel::EmailBuild
  include UserInfo
  def send(attr, channel, notification = false)
    mail = build(attr, notification)
    mail.delivery_method :smtp, {
      :openssl_verify_mode  => 'none',
      :address              => channel[:options][:host],
    #  :port                 => 587,
      :port                 => 25,
      :domain               => channel[:options][:host],
      :user_name            => channel[:options][:user],
      :password             => channel[:options][:password],
    #  :authentication       => 'plain',
      :enable_starttls_auto => true
    }
    mail.deliver    
  end
end