Buenos dias con todos.

Desde esta seman tengo un problema con servidor de correo con Zimbra 7.1.4_GA_2555 (compilación 20120105094542).

Si envio un correo simple que sea texto nomas llegan sin problemas a mi servidor de correo y no demoran nada.
Pero si envio con archivos Adjunto ahi tengo muchos problemas ya que demora mucho tiempo en llegar el correo o nunca llega. Puede demorar 24 horas en llegar.

Esto me pasa con correo de gmail o Google App, pero lo raro es que con Hotmail no tengo ese problema.

Este es un error que me llego al correo en su momento.

This is an automatically generated Delivery Status Notification
THIS IS A WARNING MESSAGE ONLY.
YOU DO NOT NEED TO RESEND YOUR MESSAGE.
Delivery to the following recipient has been delayed:
cuenta1@dominox.com.pe
Message will be retried for 2 more day(s)

Technical details of temporary failure:
Unspecified Error (SENT_MESSAGE): Connection timed out

----- 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=16BELmTHY+FedHvOdi72fqAVab265+bGxJczkcc/a+c=;
b=c0QjOburNn9NQkJQY9VVmnJWIVSH9BwkE6W1OIX9sK1ByctgKSerZEsSZnKjARFQZy
tlQnFW32yO0Ul4pvuX/PTovFusTDNVSIyI5HHwPJnbbgNsr74gFEfF0Xjz6705+sep22
HtnUXGJHC2spVUcXFoobo48tkqYgb1zUbqC+TaT+E/cdH6Jrs8Jp+t8pT8F9pijA4KSo
uXV4Ya62sLR1trAiG3J0dMD1E9G/r+rmrzaang+XZEB2WOuvnTmfqI7P9dnObEnvSxt/
PpVgWGf5gbn93oXv2Hfc28fvDDUVIRAsq8HBGPC+NY5kHSVPYba3btHXOgdfyeLJ9Jj7
r5Tg==
MIME-Version: 1.0
X-Received: by 10.68.138.199 with SMTP id qs7mr2355909pbb.199.1382632458496;
Thu, 24 Oct 2013 09:34:18 -0700 (PDT)
Received: by 10.68.145.6 with HTTP; Thu, 24 Oct 2013 09:34:18 -0700 (PDT)
Date: Thu, 24 Oct 2013 11:34:18 -0500
Message-ID:
Subject: test envio LR 2
From: =?ISO-8859-1?Q?L=E1raao_?=
To: cuenta de correo
Content-Type: multipart/mixed; boundary=047d7b15ab9f8bb1bc04e97f3442
***********************************************************************************************************************
En otra ocacion me llega este error.

From: Mail Delivery Subsystem
Subject: Delivery Status Notification (Failure)
To: easdd@bonioorigen.com
Delivery to the following recipient failed permanently:
ylopez@dominiox.com.pe

Technical details of permanent failure:
Google tried to deliver your message, but it was rejected by the server for the recipient domain outbounds200.obsmtp.com by outbounds200.obsmtp.com. [207.126.147.11].

The error that the other server returned was:
451 Remote connection lost - psmtp

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

X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
d=1e100.net; s=20130820;
h=x-gm-message-state:mime-version:from:date:message-id:subject:to
:content-type;
bh=sL4nzkRMkYhVxPc3MAYnhHUSq0vav6BldzmpVLrYqa0=;
b=Dg+MExhdLZqxZmDVn1eNu3NgbZh9BHJLzy++qxoscyaawjbsvpJNfuyBvK4IPDJkyt
dJd7vixosOABhLk7tb8j35nwKFZlLC6ihwBhnBuKN9y1Yav1a2u5NNbTg8vG5vICl1SG
YsDgXZ/+Ll5bqtGXV2QIq0LClZwISAcTgsgtOTzzVYdwl2TceJuy5GT+dM6MwZk1JkfQ
z+/yN+ujXTSUrclji8dNsetRdCzjUWKYZAyz2Yn3p1oDGNuSUW5Bg+KX6Gzsr+VmZIoc
EPCbG+KO/Z9zs74fRtAax2PfTowxVWXzN3PP5DcZOxkXt82zS8ppToZMVhyra+6peeee
/aAw==
X-Gm-Message-State: ALoCoQnN/pdfobOZ3OtFL1aakXq75TscvmaS/glD9GrNBDVua8xayf8OPupjui3QPbFbMus2UH9h
X-Received: by 10.112.135.104 with SMTP id pr8mr7440975lbb.34.1382034225433;
Thu, 17 Oct 2013 11:23:45 -0700 (PDT)
MIME-Version: 1.0
Received: by 10.112.30.199 with HTTP; Thu, 17 Oct 2013 11:23:05 -0700 (PDT)
From: easdd@bonioorigen.com
Date: Thu, 17 Oct 2013 13:23:05 -0500
Message-ID:
Subject: =?ISO-8859-1?Q?Coordinaci=F3n_=2D_Gesti=F3n_Corp=2E?=
To:"ylopez@dominiox.com.pe"
Content-Type: multipart/alternative; boundary=089e01228936131ef004e8f3eb1b