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SBS 2003, Exchange outbound mail fails with 4.3.2

Posted on 2004-08-05
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Last Modified: 2012-07-16
We recently installed SBS 2003 Std. and in Exchange we have messages destined for a particular domain that will not go out.  If I fail the messages I receive the following NDR:

This message was rejected due to the current administrative policy by the destination server.  Please retry at later time. If that fails, contact your system administrator. <#4.3.2>

This is default install.

I have seen some solutions referencing this error, but they appear to apply to EXCH 5.5 migrations, not fresh installs.

Any ideas?
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Question by:bwander
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10 Comments
 

Expert Comment

by:Locst3r
ID: 11733381
What is the output you get from message tracking?
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Expert Comment

by:Microtech
ID: 11733662
the destination server may not have set up a recipient policy for that domain

Try to telnet to port 25
http://support.microsoft.com/default.aspx?scid=KB;EN-US;Q153119&

this will find out if you can communicate with the remote server...we can find out more from there...

Have you checked www.mail-abuse.com or www.ordb.org to see if
you're listed as an open SMTP relay?

Also contact that destination domain to see if they have you on any blocklists.

Also, some domains perform a Reverse lookup, so if your external IP address
does not have  a PTR record, they will block the mail. Still others will
block mail that comes from a range of IP addresses that are know to be
dynamic subnets
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LVL 17

Expert Comment

by:Microtech
ID: 11733671
to see the last comment about reverse dns go here http://www.dnsstuff.com/pages/expert.htm
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Author Comment

by:bwander
ID: 11735384
I have looked at the message tracking log, but I don't see anything that would help me resolve the issue.  What should I look for?


The destination domain is blackberry.net.  I tried to telnet to port 25, but was unsuccessful.

We are not listed as an open SMTP relay.

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LVL 17

Expert Comment

by:Microtech
ID: 11921670
you could try and set up a smart host to deliver to this domain http://support.microsoft.com/default.aspx?kbid=297988&product=exch2k
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Author Comment

by:bwander
ID: 11966563
Additional info:

The messages being sent are from the blackberry redirector software running on our PCs.  We didn't have any problems with a Windows 2000 Server, running Exchange 2000 SP4.  It was only after upgrading to SBS 2003 (running Exchange 2003) that this problem appeared.

Any other ideas?
0
 

Accepted Solution

by:
bwander earned 0 total points
ID: 11967509
Well I fixed the problem, not sure yet which of the two things I did ultimately fixed it...I'll still have some testing to do, but here is what I did:

- Configured external DNS for my Virtual SMTP, I was using internal (and maybe somewhere in my DNS server is the problem)

- Changed Exchange server to use HELO instead of EHLO

Sorry I can't award any points, as I found a hint to the solution in another post.
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LVL 1

Expert Comment

by:rowcroft
ID: 38191145
I have found that Exchange 2010 generates that message when port 25 on the firewall is blocked outbound.
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