problema con correo

problema con correo

Hola buenos días,
Hoy y algún otro día me han comunicado que me enviaron un correo pero que les daba correo no encontrado, y yo igual al mandar correo a alguien me da este error. Solo ha sido temporal , pero me gustaría saber si tengo algo mal en la configuración o necesito añadir algo. Gracias copio el error ocultando las direcciones de email que me llega a mí del correo enviado


Delivered-To: "correo de zoho"
Received: from mail.zoho.com by mx.zohomail.com
	with SMTP id 1488534476670675.2717710859902; Fri, 3 Mar 2017 01:47:56 -0800 (PST)
Date: Fri, 03 Mar 2017 01:47:56 -0800
From: mailer-daemon@mail.zoho.com
To: "correo de zoho"
Message-Id: <15a9391977e.112170fd4249922392.-3573857991699990688@zohomail.com>
Subject: Mail Delivery Status Notification (Delay)
MIME-Version: 1.0
Content-Type: multipart/mixed; 
	boundary="----=_Part_45698_1763649041.1488534476670"
User-Agent: Zoho Mail
X-Mailer: Zoho Mail
X-ZohoMail: Z_49007938 SPT_1 Z_49009088 SPT_1  Si  CHF_MF_NL SS_10 UW48 UB48 COSF2D FMWL UW48 UB48  SGR3_1_2_0_27046_43

------=_Part_45698_1763649041.1488534476670
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: 7bit

This message was created automatically by mail delivery system.

THIS IS A WARNING MESSAGE ONLY.

YOU DO NOT NEED TO RESEND YOUR MESSAGE.

The original message was received at Fri, 03 Mar 2017 01:47:56 -0800
 from "correo de zoho" [correo de zoho] 

    ----- The following addresses had fatal errors -----    
   [Status: ERROR, Address: <correo cliente al que mando>, ResponseCode 450, 4.1.8 <correo de zoho>: Sender address rejected: Domain not found]

Message will be retried for 4 more day(s)

    ----- Transcript of session follows -----    

 Received:from [192.168.0.50] (64.red-81-34-92.dynamicip.rima-tde.net [81.34.92.64]) by mx.zohomail.com
	with SMTPS id 1488531754237805.16403966317; Fri, 3 Mar 2017 01:02:34 -0800 (PST)
 Message-ID:<53b1d219-9bb3-b56e-60fd-41b6573fc71b@"correo de zoho">
 Date:Fri, 3 Mar 2017 10:02:31 +0100
 From:Correo de zoho>
 User-Agent:Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101
 Thunderbird/45.7.0
 To:Correo cliente>
 Subject:Re: "actualizacion de petición de ayuda"
 Content-Type:multipart/mixed;
 boundary="------------DB955BAD5F86970FDAD28A2A"
------=_Part_45698_1763649041.1488534476670--