mail from other email accounts are not getting in soho mail.

The response from the remote server was:

550 5.1.1 <manjithkk@paranoiasystems.com> Recipient not found. <http://x.co/irbounce>

Final-Recipient: rfc822; manjithkk@paranoiasystems.com
Action: failed
Status: 5.1.1
Remote-MTA: dns; smtp.secureserver.net. (72.167.238.29, the server for the
domain paranoiasystems.com.)
Diagnostic-Code: smtp; 550 5.1.1 < manjithkk@paranoiasystems.com

> Recipient not found. < http://x.co/irbounce>
Last-Attempt-Date: Sun, 27 Aug 2017 21:40:58 -0700 (PDT)

---------- Forwarded message ----------
From: "manjithkk™ " < manjithkk@gmail.com>
To: manjithkk@paranoiasystems.com
Cc:
Bcc:
Date: Mon, 28 Aug 2017 10:10:56 +0530
Subject: test

test