Delayed in delivery of Exchange 2010 email messages

Hi there,
A couple of users have informed me that they get their emails after 3 days.  I asked the users to send me the delivery report, apparently there is nothing suspecious in delivery report.  What else could be holding the emails.  What should I check and where/how?
Help plz

1/24/2013 11:04 AM
Message was received by from

1/24/2013 11:04 AM
The message was successfully delivered.
amanzoorNetwork infrastructure AdminAsked:
Who is Participating?
Manpreet SIngh KhatraConnect With a Mentor Solutions Architect, Project LeadCommented:
Can you please share the header from the email or atleast check as that is the best thing that can surely tell you where the delay is happening

- Rancy
AmitIT ArchitectCommented:
Check this header information. I assume you might be using ISP Smart host. Verify with them too.
amanzoorNetwork infrastructure AdminAuthor Commented:
You mean from my ISP?  also I have checked my queue there are about 30 messages sitting
all with last error 451 4.4.0 primary target IP address respnonded 421 4.2.1 unable to connect.  I clicked on messages all these messages seem like spam and they have status of Ready with Last error 400 4.4.7 message delayed.  Is my Exchange relaying spam? how and where can I check? and why do all messages have ready status.  Need help
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amanzoorNetwork infrastructure AdminAuthor Commented:
I have delay on incoming messages.  I have checked on one of the message as the article says but I cannot find the sender:
Identity: EXCHANGE3\17231\45274
Subject: Undeliverable: Deb : You were recommended into the Global Professional Network
Internet Message ID: <>
From Address: <>
Status: Ready
Size (KB): 10
Message Source Name: DSN
Source IP:
SCL: -1
Date Received: 1/24/2013 1:44:53 AM
Expiration Time: 1/26/2013 1:44:53 AM
Last Error: 400 4.4.7 Message delayed
Queue ID: EXCHANGE3\17231

I have no idea about the recipient domain.
amanzoorNetwork infrastructure AdminAuthor Commented:
under organization config, I have 'mailbox, client access, hub transport, unified messaging'  when I click on hub transport and then tab 'Anti-spam (all item here have red circle)' then recipient filtering 'block messages to the recipients that do not exist in the directory is checked'.  Is there any other way to check if the Anti-spam is working fine for my exchange 2010?
amanzoorNetwork infrastructure AdminAuthor Commented:
User 2 is complaining that the sender sent her the email on 22nd Tuesday January, but the header does not say anything about 22nd january, while she is saying other users got it on 22nd (I have not confirmed myself with those users yet).  She further is saying she got the mail on 24th January.  Also what is the mode of sending this email, phone or computer can we tell ?


Received: from ( by (10.10.10.xx) with Microsoft SMTP Server (TLS)
 id 14.2.328.9; Thu, 24 Jan 2013 11:04:05 -0500
Received: by with SMTP id h8so4870025iaa.8        for
 <multiple recipients>; Thu, 24 Jan 2013 08:10:03 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;; s=20120113;
X-Received: by with SMTP id hx7mr1747792igc.99.1359043803556;
        Thu, 24 Jan 2013 08:10:03 -0800 (PST)
Return-Path: <senders>
Received: from [] (
 [])        by with ESMTPS id
 gs6sm1530688igc.11.2013.        (version=TLSv1
 cipher=ECDHE-RSA-RC4-SHA bits=128/128);        Thu, 24 Jan 2013 08:10:02
 -0800 (PST)
Subject: Feb 14 - kids suject of the EMAIL
From: Senders name <senders>
Content-Type: text/plain; charset="us-ascii"
X-Mailer: iPhone Mail (10A523)
Message-ID: <>
Date: Thu, 24 Jan 2013 11:09:58 -0500
To: "receiver 1 (2M)" <>, "Ms. user2 "
      <>, "user3"
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0 (1.0)
X-MS-Exchange-Organization-AuthAs: Anonymous
X-MS-Exchange-Organization-AVStamp-Mailbox: Sophos;1142013186;0;PM
X-MS-Exchange-Organization-SCL: 0
Manpreet SIngh KhatraSolutions Architect, Project LeadCommented:
Mail sent time\date
Thu, 24 Jan 2013 08:10:02 -0800 (PST)

- Rancy
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