Question Email notification

Hello, I set kunena in intranet and I can write any post, now I want send email when a register users end a new question or comment, I created my register user and kunena sent me the next advertisement:

Mensaje

Su cuenta ha sido creada y se ha enviado un enlace de activación a la dirección de correo electrónico que ha introducido. Antes de poder identificarse como usuario registrado, note que debe verificar la cuenta seleccionando el enlace de verificación que le hemos enviado a su dirección de correo electrónico, y luego un administrador la activará.

The announcement sent me that I have been recived an email notification but I didn't recive it, why I did't recive it?

Could you help me please?

That's a Joomla message. Kunena has no own registration, it is only a redirect to the Joomla registration. Maybe you find the notification mail in your spam folder.

Hello, in my spam folder I found:

The mail system

<[email protected]>: Host or domain name not found. Name service error
for name=dt.xxx.com type=AAAA: Host not found

Part 2:
Content-Description: Delivery report
Content-Type: message/delivery-status

Part 3:
Content-Description: Undelivered Message
Content-Type: message/rfc822


From apache@e_potencia.xxx.com Thu Nov 30 09:37:54 2017
Return-Path: <apache@e_potencia.xxx.com>
To: [email protected]
Subject: New User Details
X-PHP-Originating-Script: 0:class.phpmailer.php
Date: Thu, 30 Nov 2017 15:37:54 +0000
From: Depto de Elect <[email protected]>
Reply-To: Hugo <[email protected]>
Content-Type: text/plain; charset=utf-8


Will you have any idea about what is the problem?

Regards.
Xochitl

looks like the server isn't setup correct. please ask your hoster. Show them the error above.

Lo siento pero estoy un poco confundida, para que los correos de notificacion se envien se debe de instalar un componente o un extensions?

Please use the english language.