[CentOS] About email

Well, i just unistall sendmail and install postfix. works sending mails,
but now only receibe mails locally. i can receive from another ip

Technical details of permanent failure:
Google tried to deliver your message, but it was rejected by the recipient
domain. We recommend contacting the other email provider for further
information about the cause of this error. The error that the other server
returned was: 554 554 5.7.1 <comunicados@<comunicados at mercadeoeficaz-cr.com>
domain.com>: Relay access denied (state 13).

----- Original message -----

DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=gmail.com; s=20120113;
        h=mime-version:date:message-id:subject:from:to:content-type;
        bh=jDt3EI6ywKZwn0G62qLaW/3DG9LIVt+5Rsmvh5RNTKw=;
        b=z445p/gc3/a+6bCE9ZfgQFYkxgKqDZooH3dDT2ukwkDVC3cZYBBnVwzgK9HVAZ6GjP
         DH2B2zYjZNl+I7Z0rd4Qoj9pAN5yxfCzTTq+l76JnxZjN+m8F/
ko9QdMpyAKCpcmnrmz
         tQYnBGGRI85L/oznaxQby0gyM8D4s1hU25YOIIeZIj5
VREKEovYEhQ+9RhmYpoTcgihA
         zHrUztR+emH+FFkg1VTrkkivybJ/oaSAIUH6FFDuYgBGQT2gV0KqYl883g
yT5Oz6BCHq
         OA+akqI40qTkumpzCa4Oem63fyTMOIlyQ3PGygQJ650PjqdVhhAEhQAGIr/
B98VYfG+h
         LuoQ==
MIME-Version: 1.0
Received: by 10.182.218.37 with SMTP id pd5mr3863733obc.24.1350057105280;
Fri,
 12 Oct 2012 08:51:45 -0700 (PDT)
Received: by 10.182.17.97 with HTTP; Fri, 12 Oct 2012 08:51:45 -0700 (PDT)
Date: Fri, 12 Oct 2012 09:51:45 -0600
Message-ID: <CAN-xpqTtBiAhh8vfkOsQfjLY1JrOWvE0_8vP2Zn=
bCxg5ixLtA at mail.gmail.com>
Subject: kj
From: =?ISO-8859-1?Q?Andrei_Rolando_Le=F3n_Salas?= <
andreileonsalas at gmail.com>
To: comunicados@ <comunicados at mercadeoeficaz-cr.com>domain.com
Content-Type: multipart/alternative; boundary=f46d04447dff2fd05a04cbdeaa68

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