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Undeliverable message

Hi all,

I'm new to this forum and a novice on Exchange.
I'm getting the following undeliverable message from Exchange.  Does this have anything to do with handshake protocols?

Thanks in advance for your help,

The following recipient(s) could not be reached: on 12/20/2005 3:06 PM
The mail protocol was unable to handle one or more requests because they were unrecognized or invalid. Please notify your system administrator.

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When I receive undeliverable messages, it seems like exchange strips the message headers.. where do these get stored?

Hi All

We are using Microsoft Exchange 2003 on Windows 2003 Server. We ( receive many "Undeliverable Message" from different company during this day. But i am sure that no people sent the message to them.

So I trust one outside machine (it is not our computer and not in our network) may get virus, this machine use to sent spam message and virus. So we will receive "Undeliverable Message" from when this machine sent to other companys and their companys can refuse the e-mail and reject to our account. What can i prevent? and How can delelte this undelivery message? Thanks


Hi All,
I am having a problem at the moment where a certain user sends an invite out, when the recipient accepts it is added into their calander and also into the senders. The recipient however then recieves two Undeliverable messages.
The first is:

David Cooke on 25/11/2008 15:52
The message could not be delivered because the recipient's destination email system is unknown or invalid. Please check the address and try again, or contact your system administrator to verify connectivity to the email system of the recipient.

The second is:
Jonathan Spencer-Webb on 25/11/2008 15:52
The message reached the recipient's e-mail system, but delivery was refused. Attempt to resend the message. If it still fails, contact your system administrator.

I have checked the senders delegates and there is nothing in there, also under delivery options no emaisl are being forwarded onto other users.
Help me MTV pimp my ride!

Hi Expert,

Can you please advise can I customise the text of undelverable message in exchange 2003? how if yes.

For example:
when an email  from Outlook is not delivered, the sender will get a bounce back Undeliverable message, like
"Your message did not reach some or all the intended recipients.
You do not have permission to send to this recipient. For assistance, contact your system administrator."

is there a  way to change the text of the the above message?
for example to
"You do not have permission to send to this recipient, pls contact so and so"



Was wondering if anyone has any information on how to customize an undeliverable message?

Created a distribution list that only accepts messages from an admin distribution list. So anyone who is does not have permissions to use this list gets an undeliverable message. That is great except we would like to customize the message to streamline communications.

Any Idea's. Am I looking at scripting tools, If so where would I look?

Dear All,

I have with win2K server &Exchange 2K on same Machin. If anyone sending a mail to user A, he getting undeliverable message from administrator(5.3.5)that user B bounce email configuration error and but User A recived successfully.real fact,the User B is deleted from AD and Exchange store too.I created the B account again in AD,but problem still exist

Pls, Anyone can help in this regrad

Thanking you

Can some please assist me: my user is trying to send out message to He keeps getting an undeliverable message that says

" on Thu, 13 May 2004 23:00:34 -0400
Could not deliver the message in the time limit specified. Please
retry or contact your administrator."

Don't know what to check on my end


This has been an on going problem for some time now. Every time I think I have this correct it shows backup. Ok here is goes

We were running in mixed mode not to long ago. We removed the 5.5 servers and switched to native mode. This problem seemed to go away. Then after a few weeks the problem showed back up again. We found out that a DNS entry was missing. After the DNS entry was added all mail seemed to following fine. Then it this problem showed back up again. We believed that this we due to us not having our DNS Servers set as forwarders, so we enabled forwarding on all of our DNS Servers, but this has not correct the problem. It did seem to help for a day or so. Now we are getting more and more delayed and undeliverable messages. The property of these domains in the queue is as follows:

1. An SMTP protocol error occurred (Found this error only once).
2. Unable to bind to the destination Server in DNS (Found this error about 1 out of every 15 or 20).
3. The remote server did not respond to a connection attempt (This is the most common message displayed). Corresponding event ID 4000

Most of the Microsoft Qarticles suggest installing the latest Exchange SP, which I have done multiple times (SP3). I have also installed the latest Windows SP (SP3) on Exchanges Servers and the DNS Servers. This has never corrected the problem.

Any Help you could provide would be great.

I get an undeliverable message when my user trys to send just one particular person email. There is no other problem sending mail to any other internet mail addy from this Exchange 5.5 server.My user and I can send the message through other mail servers offsite, so the address is good.This is on an ISDN continous connection, MS Proxy, Exchange 5.5. DNS is managed by ISP.Non delivery report is the usual:The following recipient(s) could not be reached: 'Person's Name' on 1/2/02 10:21AM The recipient name is not recognized
The MTS-ID of the original message is: c=US;a= ;p=First Missouri

I am getting an undeliverable message from a user whos mailbox has been deleted but was included in a distribution list - he does not appear to be on the distribution list but Exchange 5.5 is still picking his address from somewhere when the distribution list is selected - please can someone advise could the server be holding this DL in cache and if so for how long? Urgent help required[This message has been edited by raj (edited 07-19-2000).]

I have just installed Exchange 5.5 on to a new server. On our old server if the e-mail address was not recognised it was delivered to the Administrator's mailbox for forwarding to receiptient if known. However since I have installed the new server undeliverable e-mails are being returned to sender.Can anyone help me configure Exchange to route undeliverable messages to Administrator.


One of users received really strange undeliverable messages (one yesterday
and one today. it never happened before)

This is the message

The following recipient(s) could not be reached: on 5/6/2005 12:29 PM
The e-mail account does not exist at the organization this
message was sent to. Check the e-mail address, or contact the recipient
directly to find out the correct address.
< #5.1.1 SMTP; 550 5.1.1
... User unknown>

First of all is not our company and the user never sent emails
I tried to look at the email header, but it does not exist.
because it is from exchange server (I guess).

Does anyone know how to fix or where to start to fix this?

Thank you very much.

Is it possible to delegate a user or area where incoming undeliverable
messages are forwarded or stored in Exchange 2003??

I'd like to be able to see wrong addresses etc.


I am getting the following undeliverable messages when I sent mail to several

553 sorry, that domain isn't in my list of allowed rcpthosts (#5.7.1)

I need to know what this really means, and how to fix it if there is a

we currently have an Exchange server 2k3 with spk1 on Windows 2k3 also with


Is there a property somewhere under one of the WebDAV namespaces (schemas) that I can check to see if a message in my inbox folder is an "undeliverable" email (i.e. returned back to me due to a bad recipient)? I'm reading messages from inboxes and want to detect messages that are returned as undeliverable. I was hoping that there was some property that indicates it's an undeliverable message type.

If so, is there another property (like the href) on the undeliverable message that will give me the URL of the original message sent? This would be very useful to be able to pull up the original message.

Thank you very much,


I have a few users reported undeliverable message problem; however, i don't know what's causing it, please help.
The bounced-back messages were trying to go and
Messages were trying to the bounced back right after 5 seconds; and the other
bounced back after 48 hours. Used to there was no such problem and no one changed any exchange settings.
Sometimes, everything works fine. We are small company which has single DC with DSN and Exhchange 03 is hosted
on a different server.

Here are the error messages:

The following recipient(s) could not be reached: on 3/13/2006 11:10 AM
There was a SMTP communication problem with the recipient's email server.  Please contact your system administrator.

The second one:

The following recipient(s) could not be reached: on 3/15/2006 4:12 PM
            Could not deliver the message in the time limit specified.  Please retry or contact your administrator.
Any help is greatly appreciated.

I am running Exchange 2000 SP3, with Computer Associates Secure Content Manager running as a front wnd to the Exchange Mail server (blocking SPAM, Viri, etc.) On occassions a user will get a "Undeliverable Message" as a response to an email that a user sent to a specific email address. I have ruled out that the address is wrong, since it has been verified by the target party. Is this a DNS issue? What causes this happen? I looked in the Exchange System Manager and I noticed that the domain ( of the email in quuestion is listed as "Remote Delivery"; however, there are no messages "waiting to be Routed" or "waiting for Directory Lookup" withing the Exchange System Manager SMTP Queue. What are the steps to take to troubleshoot an issue like this?

I have been receiving undeliverable messages in my Inbox for email messages to people I do not know and emails I have not sent myself.

One instance is:

Received: (qmail 26396 invoked from network); 19 Sep 2006 21:19:26 -0400
Received: from unknown (HELO (
by 0 with SMTP; 19 Sep 2006 21:19:26 -0400
Date: Wed, 20 Sep 2006 06:49:44 +0500
From: "notauser"
User-Agent: Mozilla/5.0 (compatible; Konqueror/2.2.1; Linux)
MIME-Version: 1.0
To: "user"
Subject: To you there has come a card from

I have checked our Exchange 2003 server and it does not appear to be an open relay so I'm wondering what is happening and how I stop this.
I've also received similar undeliverable emails where they are sent from my own email address, which is valid but bounce back either as undeliverable, or the recipients email server has rejected them.

Can anyone shed some light on what is happening here?


Just a quick question. I know I was able to do this on EXCH 5.5, but cant work out how to do it on 2K.

How do I retrieve this message? Is there a way after I recieve the undeliverable message to actually see what was in it?

Thanks once again

have been living with this problem off and on for some time, but this past
week or so it has gotten obnoxious.

When I send an email, I get back an "Undeliverable" message from the System
Administrator -- which I believe to be me. The reason I think it is me is the
speed at which it appears in my Inbox. It sometimes appears immediately after
I click on the Send/Receive button -- it does not take the few seconds time
it usually takes to go out to the net and return.

I am a one-person shop, not running Exchange Server -- so the link below
does not apply to me. I am using Outlook 2003 SP2

When I click 'Send again' I frequently get the same result -- especially if
it is a Reply to someone else's email. Sometimes I have to create a whole new
eamil and paste the contents of the one that won't go into it. This is
getting to be VERY annoying.

I keep getting undeliverable messages that appear to be sent from my email
account, but the first part is not correct. I have run anti virus, scanned
etc. but still to no avail. Any help would be appreciated as most of my
incoming mail is this type of email.

Hello all,

I am getting lots of these undeliverable messages even to emails
within my own domain. Any idea why or who to diagnose? please

Undeliverable: Contract
System Administrator
Your message did not reach some or all of the intended recipients.

Subject: RE: Contract
Sent: 12/30/2006 8:19 AM

The following recipient(s) could not be reached:

'' on 12/30/2006 8:19 AM

I seem to have developed a problem with sending messages ...

Every so often, seemingly randomly, I compose a message and send it in the
normal way only to observe it sitting in the Outbox whilst Outlook attempts
to send it. This continues for a few minutes and then I receive an
undeliverable message:

The following recipient(s) could not be reached:

'' on 22/11/2007 22:44

451 4.3.0 Error: queue file write error

XXX YYY on 22/11/2007 22:44

451 4.3.0 Error: queue file write error

Any help would be appreciated.


Outlook 2003 (exchange) – rule – search a word in message text in an
undeliverable replay message from system administrator!

Rules in Outlook with search of a word in the message text of undeliverable
replay messages from system administrator don’t work.

For example:
If I send a mail to

Not finding an answer? Try a Google search.