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Email Account: Unable to receive external emails

Posted on 2011-03-23
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2,041 Views
Last Modified: 2012-05-11
There is one user in a domain where he cannot receive external emails, he can send and receive internal and external just fine and can send external just fine. Just not receive them.

I have double and treble checked the address it is being sent to is correct and I have even tried adding another SMTP address to make sure, but that wouldn't work either.

Anyone know whats going on here?

Thanks for your help!

Tom
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Question by:Infinate_
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22 Comments
 

Author Comment

by:Infinate_
ID: 35198063
oh and no one else on the domain is affected by this, they can receive external emails just fine.
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LVL 5

Assisted Solution

by:sweeps
sweeps earned 125 total points
ID: 35198116
in exchange management console look at the users properties and click the mail flow tab, then in Message delivery restrictions make sure there is not a checkmark in require senders to be authenticated.
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Author Comment

by:Infinate_
ID: 35198152
nope, there is no tick in that box
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LVL 2

Expert Comment

by:ReesAssociates
ID: 35198202
Are the external senders receiving NDRs?  Are the external emails going to your exchange queue?
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Author Comment

by:Infinate_
ID: 35198610
I can't see it pop up in the exchange queue and it delivers a NDR to the sender too.
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Author Comment

by:Infinate_
ID: 35198616
The e-mail account does not exist at the organization this message was sent to.

User unknown

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LVL 2

Expert Comment

by:ReesAssociates
ID: 35198621
Do you have access to the NDR.  Can you post it please.  Thanks.
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Author Comment

by:Infinate_
ID: 35198705
Your message did not reach some or all of the intended recipients.

      Subject:      test
      Sent:      3/23/2011 1:47 PM

The following recipient(s) cannot be reached:

      jon@########.co.uk on 3/23/2011 1:48 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.
            < ####.mailcontrol.com #5.1.1 SMTP; 550 5.1.1 <jon@########.co.uk>... User unknown>
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LVL 2

Expert Comment

by:ReesAssociates
ID: 35198782
From the EMC>Recipient Configuration>Mailbox, go the the properties of the user's mailbox.  Then access the email address Tab.  Is the correct email address or the one that the test was sent to listed in this tab?
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Author Comment

by:Infinate_
ID: 35198869
I'm on exchange 2003 btw

Oh and yes it is there, i added another entry anyway and tried to email that too, but no luck.
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Author Comment

by:Infinate_
ID: 35199067
it appears i have a conundrum :(
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LVL 46

Expert Comment

by:Craig Beck
ID: 35199242
Is your mail hosted somewhere else?  Do you use a POP or IMAP connector to download mail to the Exchange server?

This sounds suspiciously like you host your mail offsite, and the offsite server doesn't have a mailbox for that user.
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LVL 2

Expert Comment

by:ReesAssociates
ID: 35199256
https://www.testexchangeconnectivity.com/#

Please run the Inbound SMTP Email test with the account that is having problems.
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Author Comment

by:Infinate_
ID: 35200865
The exchange is inhouse, it isn't hosted. All the other accounts are fine just not this one.

I ran the test from testexchangeconnectivity.com and got the following error:

The server returned status code 451 - Error in processing. The server response was: 4.3.2 Please try again later
Exception details:
Message: Error in processing. The server response was: 4.3.2 Please try again later
Type: System.Net.Mail.SmtpException
Stack trace:
at System.Net.Mail.DataStopCommand.CheckResponse(SmtpStatusCode statusCode, String serverResponse)
at System.Net.Mail.SmtpConnection.OnClose(Object sender, EventArgs args)
at System.Net.ClosableStream.Close()
at System.Net.Mail.MailWriter.Close()
at System.Net.Mail.SmtpClient.Send(MailMessage message)
at Microsoft.Exchange.Tools.ExRca.Tests.SmtpMessageTest.PerformTestReally()
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LVL 2

Expert Comment

by:ReesAssociates
ID: 35201094
4.3.2 Is an error code that is a result of recipient's mail queue being stopped or frozen.  I am not sure why you are receiving this message when other accounts are working fine.
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LVL 2

Assisted Solution

by:ReesAssociates
ReesAssociates earned 125 total points
ID: 35201171
Do you have just a single server in your exchange environment?  If not, have you recently moved this account from one site to another?
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LVL 9

Assisted Solution

by:dexIT
dexIT earned 125 total points
ID: 35202261
(Back up the users mailbox) then try removing the exchange attributes for the user and re-adding them with the alias you are seeking to correct.
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LVL 46

Assisted Solution

by:Craig Beck
Craig Beck earned 125 total points
ID: 35202342
< ####.mailcontrol.com #5.1.1 SMTP; 550 5.1.1 <jon@########.co.uk>... User unknown>



Sorry to repeat, and I apologise in advance if I am way off, but this line makes me think your mail is either hosted offsite, or filtered before it gets to your Exchange server.

Do you use an external spam filter / virus scanner service?

From what I can see, MAILCONTROL.COM is either hosted or owned by WebSense.  If I search for Websense Mailcontrol in Google I get results that suggest MAILCONTROL.COM is a hosted email service.
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Author Comment

by:Infinate_
ID: 35206107
Ahh Craig, you might be onto something, I know the exchange isn't hosted as i put the local address in when i setup exchange profiles on pc's. But i didn't think about it being filtered.. Your right it is filtered by MailControl.

I can't login to Mailcontrol at the moment, but I will check that as soon as i can and get back to you.

Thanks for being persistant!! ;)

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LVL 46

Expert Comment

by:Craig Beck
ID: 35206342
No probs :-)

You'll probably just need to add the account to the filter at MAILCONTROL.COM.
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Accepted Solution

by:
Infinate_ earned 0 total points
ID: 35230679
Turns out it wasn't mail control, I had to speak to the higher ups in the end, but apparently the mail system is a bit of a mess so i didn't have much of a chance here, turns out there is a step before mailcontrol too..

The email goes into a linux server and then routed to Mailcontrol and then to the windows server. Don't ask my why ;P
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Author Closing Comment

by:Infinate_
ID: 35304182
As no one really answered the question, I thought i would just divide up the points to all you who helped ;)
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