Cant send emails to addresses with underscore

Cant send emails to addresses with underscore

Hello,

I just tried to send an email to addresses which contains underscore character '_' and zoho server response with a failure message.

Is there a way to disable this restriction?

Thanks


This message was created automatically by mail delivery software. 
A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. 

name_lastname@outlook.com INVALID_ADDRESS, ERROR_CODE :550, ERROR_CODE :Requested action not taken: mailbox unavailable 



Received:from mail.zoho.com by mx.zohomail.com 
    with SMTP id 1473973314528134.67090916462723; Thu, 15 Sep 2016 14:01:54 -0700 (PDT) 
Message-ID:<1572fa7e3de.11f6d798192043.8939193370566267950@airavirtual.com> 
Date:Thu, 15 Sep 2016 18:01:54 -0300 
From:Aira Virtual <noreply@airavirtual.com> 
User-Agent:Zoho Mail 
To:"pablo_rodriguez_valenzuela" <name_lastname@outlook.com> 
Subject:Prueba de envio a correo con _ 
Content-Type:multipart/alternative; 
    boundary="----=_Part_289606_1730403144.1473973314527"