Delivery to the following recipient failed permanently

Delivery to the following recipient failed permanently

Keep Getting the below error for a number of email addresses. Have pasted the full details below. can someone help me urgently pls. 

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Delivery to the following recipient failed permanently: 


support@twitter.com  

Technical details of permanent failure: 
The account  pritesh@mobilestack.io  is disabled. 

----- Original message ----- 

X-Received: by 10.98.141.217 with SMTP id p86mr19643823pfk.109.1476954447510; 
Thu, 20 Oct 2016 02:07:27 -0700 (PDT) 
Return-Path: < pritesh@mobilestack.io
Received: from sender163-mail.zoho.com (sender163-mail.zoho.com. [74.201.84.163]) 
by mx.google.com with ESMTPS id e6si36874810pan.151.2016.10.20.02.07.27 
for < support@twitter.com
(version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); 
Thu, 20 Oct 2016 02:07:27 -0700 (PDT) 
Received-SPF: neutral (google.com: 74.201.84.163 is neither permitted nor denied by best guess record for domain of  pritesh@mobilestack.io ) client-ip=74.201.84.163; 
Authentication-Results: mx.google.com; 
spf=neutral (google.com: 74.201.84.163 is neither permitted nor denied by best guess record for domain of pritesh@mobilestack.io ) smtp.mailfrom= pritesh@mobilestack.io  
Received: from mail.zoho.com by mx.zohomail.com 
    with SMTP id 1476954444629264.26501167373476; Thu, 20 Oct 2016 02:07:24 -0700 (PDT) 
Date: Thu, 20 Oct 2016 02:07:24 -0700 
From: Pritesh Vora < pritesh@mobilestack.io
To: "Twitter Support" < support@twitter.com
Message-Id: <157e158534e.10bcb 253f115038.8954011043771227692@mobilestack.io
In-Reply-To: < E1.2E.63300.AD888085@mail.twitter.com
References: < E1.2E.63300.AD888085@mail.twitter.com
Subject: Re: Case# 41883877: Tweets, hashtags or media I've posted are 
missing from search 
MIME-Version: 1.0 
Content-Type: multipart/alternative; 
    boundary="----=_Part_359834_1636586633.1476954444627" 
X-Priority: Medium 
User-Agent: Zoho Mail 
X-Mailer: Zoho Mail