Dear sr

Recurringly receiving a delay message when sending email to clients.
Can you resolve this definitively? this is very boring.

This message was automatically created 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, 26 Oct 2018 05:33:51 -0700
from guido@bauerconsultoria.com.br [guido@bauerconsultoria.com.br]

----- The following addresses had fatal errors -----
[Status: DOMAIN_NOT_RESOLVED, Address: <saraiva @ localhost>, DOMAIN_NOT_RESOLVED]

Message will be retried for 4 more day (s)

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

Received: from mail.zoho.com by mx.zohomail.com
     with SMTP id 1540554524296953.338295169415; Fri, 26 Oct 2018 04:48:44 -0700 (PDT)
Message-ID: <166b0348686.c8a2ca0b34596.505234741100205286@bauerconsultoria.com.br>
Date: Fri, 26 Oct 2018 09:48:44 -0200